280230080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:155

約数の個数: 224

約数和(自身を含む): 774240768

約数和(自身を除く): 494010688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 41, 52, 53, 62, 64, 65, 80, 82, 104, 106, 124, 130, 155, 160, 164, 205, 208, 212, 248, 260, 265, 310, 320, 328, 403, 410, 416, 424, 496, 520, 530, 533, 620, 656, 689, 806, 820, 832, 848, 992, 1040, 1060, 1066, 1240, 1271, 1312, 1378, 1612, 1640, 1643, 1696, 1984, 2015, 2080, 2120, 2132, 2173, 2480, 2542, 2624, 2665, 2756, 3224, 3280, 3286, 3392, 3445, 4030, 4160, 4240, 4264, 4346, 4960, 5084, 5330, 5512, 6355, 6448, 6560, 6572, 6890, 8060, 8215, 8480, 8528, 8692, 9920, 10168, 10660, 10865, 11024, 12710, 12896, 13120, 13144, 13780, 16120, 16430, 16523, 16960, 17056, 17384, 20336, 21320, 21359, 21730, 22048, 25420, 25792, 26288, 27560, 28249, 32240, 32860, 33046, 34112, 34768, 40672, 42640, 42718, 43460, 44096, 50840, 52576, 55120, 56498, 64480, 65720, 66092, 67363, 69536, 81344, 82615, 85280, 85436, 86920, 101680, 105152, 106795, 110240, 112996, 128960, 131440, 132184, 134726, 139072, 141245, 165230, 170560, 170872, 173840, 203360, 213590, 220480, 225992, 262880, 264368, 269452, 282490, 330460, 336815, 341744, 347680, 406720, 427180, 451984, 525760, 528736, 538904, 564980, 660920, 673630, 683488, 695360, 854360, 875719, 903968, 1057472, 1077808, 1129960, 1321840, 1347260, 1366976, 1708720, 1751438, 1807936, 2155616, 2259920, 2643680, 2694520, 3417440, 3502876, 4311232, 4378595, 4519840, 5287360, 5389040, 6834880, 7005752, 8757190, 9039680, 10778080, 14011504, 17514380, 21556160, 28023008, 35028760, 56046016, 70057520, 140115040, 280230080]

約数ペア:

[(1, 280230080), (2, 140115040), (4, 70057520), (5, 56046016), (8, 35028760), (10, 28023008), (13, 21556160), (16, 17514380), (20, 14011504), (26, 10778080), (31, 9039680), (32, 8757190), (40, 7005752), (41, 6834880), (52, 5389040), (53, 5287360), (62, 4519840), (64, 4378595), (65, 4311232), (80, 3502876), (82, 3417440), (104, 2694520), (106, 2643680), (124, 2259920), (130, 2155616), (155, 1807936), (160, 1751438), (164, 1708720), (205, 1366976), (208, 1347260), (212, 1321840), (248, 1129960), (260, 1077808), (265, 1057472), (310, 903968), (320, 875719), (328, 854360), (403, 695360), (410, 683488), (416, 673630), (424, 660920), (496, 564980), (520, 538904), (530, 528736), (533, 525760), (620, 451984), (656, 427180), (689, 406720), (806, 347680), (820, 341744), (832, 336815), (848, 330460), (992, 282490), (1040, 269452), (1060, 264368), (1066, 262880), (1240, 225992), (1271, 220480), (1312, 213590), (1378, 203360), (1612, 173840), (1640, 170872), (1643, 170560), (1696, 165230), (1984, 141245), (2015, 139072), (2080, 134726), (2120, 132184), (2132, 131440), (2173, 128960), (2480, 112996), (2542, 110240), (2624, 106795), (2665, 105152), (2756, 101680), (3224, 86920), (3280, 85436), (3286, 85280), (3392, 82615), (3445, 81344), (4030, 69536), (4160, 67363), (4240, 66092), (4264, 65720), (4346, 64480), (4960, 56498), (5084, 55120), (5330, 52576), (5512, 50840), (6355, 44096), (6448, 43460), (6560, 42718), (6572, 42640), (6890, 40672), (8060, 34768), (8215, 34112), (8480, 33046), (8528, 32860), (8692, 32240), (9920, 28249), (10168, 27560), (10660, 26288), (10865, 25792), (11024, 25420), (12710, 22048), (12896, 21730), (13120, 21359), (13144, 21320), (13780, 20336), (16120, 17384), (16430, 17056), (16523, 16960)]