400098400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 288

約数和(自身を含む): 1165425408

約数和(自身を除く): 765327008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 31, 32, 34, 40, 50, 52, 62, 65, 68, 73, 80, 85, 100, 104, 124, 130, 136, 146, 155, 160, 170, 200, 208, 221, 248, 260, 272, 292, 310, 325, 340, 365, 400, 403, 416, 425, 442, 496, 520, 527, 544, 584, 620, 650, 680, 730, 775, 800, 806, 850, 884, 949, 992, 1040, 1054, 1105, 1168, 1240, 1241, 1300, 1360, 1460, 1550, 1612, 1700, 1768, 1825, 1898, 2015, 2080, 2108, 2210, 2263, 2336, 2480, 2482, 2600, 2635, 2720, 2920, 3100, 3224, 3400, 3536, 3650, 3796, 4030, 4216, 4420, 4526, 4745, 4960, 4964, 5200, 5270, 5525, 5840, 6200, 6205, 6448, 6800, 6851, 7072, 7300, 7592, 8060, 8432, 8840, 9052, 9490, 9928, 10075, 10400, 10540, 11050, 11315, 11680, 12400, 12410, 12896, 13175, 13600, 13702, 14600, 15184, 16120, 16133, 16864, 17680, 18104, 18980, 19856, 20150, 21080, 22100, 22630, 23725, 24800, 24820, 26350, 27404, 29200, 29419, 30368, 31025, 32240, 32266, 34255, 35360, 36208, 37960, 38471, 39712, 40300, 42160, 44200, 45260, 47450, 49640, 52700, 54808, 56575, 58400, 58838, 62050, 64480, 64532, 68510, 72416, 75920, 76942, 80600, 80665, 84320, 88400, 90520, 94900, 99280, 105400, 109616, 113150, 117676, 124100, 129064, 137020, 147095, 151840, 153884, 161200, 161330, 171275, 176800, 181040, 189800, 192355, 198560, 210800, 219232, 226300, 235352, 248200, 258128, 274040, 294190, 307768, 322400, 322660, 342550, 362080, 379600, 384710, 403325, 421600, 452600, 470704, 496400, 500123, 516256, 548080, 588380, 615536, 645320, 685100, 735475, 759200, 769420, 806650, 905200, 941408, 961775, 992800, 1000246, 1096160, 1176760, 1231072, 1290640, 1370200, 1470950, 1538840, 1613300, 1810400, 1923550, 2000492, 2353520, 2500615, 2581280, 2740400, 2941900, 3077680, 3226600, 3847100, 4000984, 4707040, 5001230, 5480800, 5883800, 6155360, 6453200, 7694200, 8001968, 10002460, 11767600, 12503075, 12906400, 15388400, 16003936, 20004920, 23535200, 25006150, 30776800, 40009840, 50012300, 80019680, 100024600, 200049200, 400098400]

約数ペア:

[(1, 400098400), (2, 200049200), (4, 100024600), (5, 80019680), (8, 50012300), (10, 40009840), (13, 30776800), (16, 25006150), (17, 23535200), (20, 20004920), (25, 16003936), (26, 15388400), (31, 12906400), (32, 12503075), (34, 11767600), (40, 10002460), (50, 8001968), (52, 7694200), (62, 6453200), (65, 6155360), (68, 5883800), (73, 5480800), (80, 5001230), (85, 4707040), (100, 4000984), (104, 3847100), (124, 3226600), (130, 3077680), (136, 2941900), (146, 2740400), (155, 2581280), (160, 2500615), (170, 2353520), (200, 2000492), (208, 1923550), (221, 1810400), (248, 1613300), (260, 1538840), (272, 1470950), (292, 1370200), (310, 1290640), (325, 1231072), (340, 1176760), (365, 1096160), (400, 1000246), (403, 992800), (416, 961775), (425, 941408), (442, 905200), (496, 806650), (520, 769420), (527, 759200), (544, 735475), (584, 685100), (620, 645320), (650, 615536), (680, 588380), (730, 548080), (775, 516256), (800, 500123), (806, 496400), (850, 470704), (884, 452600), (949, 421600), (992, 403325), (1040, 384710), (1054, 379600), (1105, 362080), (1168, 342550), (1240, 322660), (1241, 322400), (1300, 307768), (1360, 294190), (1460, 274040), (1550, 258128), (1612, 248200), (1700, 235352), (1768, 226300), (1825, 219232), (1898, 210800), (2015, 198560), (2080, 192355), (2108, 189800), (2210, 181040), (2263, 176800), (2336, 171275), (2480, 161330), (2482, 161200), (2600, 153884), (2635, 151840), (2720, 147095), (2920, 137020), (3100, 129064), (3224, 124100), (3400, 117676), (3536, 113150), (3650, 109616), (3796, 105400), (4030, 99280), (4216, 94900), (4420, 90520), (4526, 88400), (4745, 84320), (4960, 80665), (4964, 80600), (5200, 76942), (5270, 75920), (5525, 72416), (5840, 68510), (6200, 64532), (6205, 64480), (6448, 62050), (6800, 58838), (6851, 58400), (7072, 56575), (7300, 54808), (7592, 52700), (8060, 49640), (8432, 47450), (8840, 45260), (9052, 44200), (9490, 42160), (9928, 40300), (10075, 39712), (10400, 38471), (10540, 37960), (11050, 36208), (11315, 35360), (11680, 34255), (12400, 32266), (12410, 32240), (12896, 31025), (13175, 30368), (13600, 29419), (13702, 29200), (14600, 27404), (15184, 26350), (16120, 24820), (16133, 24800), (16864, 23725), (17680, 22630), (18104, 22100), (18980, 21080), (19856, 20150)]