131603680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 349743744

約数和(自身を除く): 218140064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 157, 160, 169, 208, 248, 260, 310, 314, 338, 403, 416, 496, 520, 620, 628, 676, 785, 806, 845, 992, 1040, 1240, 1256, 1352, 1570, 1612, 1690, 2015, 2041, 2080, 2480, 2512, 2704, 3140, 3224, 3380, 4030, 4082, 4867, 4960, 5024, 5239, 5408, 6280, 6448, 6760, 8060, 8164, 9734, 10205, 10478, 12560, 12896, 13520, 16120, 16328, 19468, 20410, 20956, 24335, 25120, 26195, 26533, 27040, 32240, 32656, 38936, 40820, 41912, 48670, 52390, 53066, 63271, 64480, 65312, 77872, 81640, 83824, 97340, 104780, 106132, 126542, 132665, 155744, 163280, 167648, 194680, 209560, 212264, 253084, 265330, 316355, 326560, 389360, 419120, 424528, 506168, 530660, 632710, 778720, 822523, 838240, 849056, 1012336, 1061320, 1265420, 1645046, 2024672, 2122640, 2530840, 3290092, 4112615, 4245280, 5061680, 6580184, 8225230, 10123360, 13160368, 16450460, 26320736, 32900920, 65801840, 131603680]

約数ペア:

[(1, 131603680), (2, 65801840), (4, 32900920), (5, 26320736), (8, 16450460), (10, 13160368), (13, 10123360), (16, 8225230), (20, 6580184), (26, 5061680), (31, 4245280), (32, 4112615), (40, 3290092), (52, 2530840), (62, 2122640), (65, 2024672), (80, 1645046), (104, 1265420), (124, 1061320), (130, 1012336), (155, 849056), (157, 838240), (160, 822523), (169, 778720), (208, 632710), (248, 530660), (260, 506168), (310, 424528), (314, 419120), (338, 389360), (403, 326560), (416, 316355), (496, 265330), (520, 253084), (620, 212264), (628, 209560), (676, 194680), (785, 167648), (806, 163280), (845, 155744), (992, 132665), (1040, 126542), (1240, 106132), (1256, 104780), (1352, 97340), (1570, 83824), (1612, 81640), (1690, 77872), (2015, 65312), (2041, 64480), (2080, 63271), (2480, 53066), (2512, 52390), (2704, 48670), (3140, 41912), (3224, 40820), (3380, 38936), (4030, 32656), (4082, 32240), (4867, 27040), (4960, 26533), (5024, 26195), (5239, 25120), (5408, 24335), (6280, 20956), (6448, 20410), (6760, 19468), (8060, 16328), (8164, 16120), (9734, 13520), (10205, 12896), (10478, 12560)]