258786840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8731}}^1$

素因数の和:8777

約数の個数: 128

約数和(自身を含む): 880185600

約数和(自身を除く): 621398760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 988, 1140, 1235, 1482, 1560, 1976, 2280, 2470, 2964, 3705, 4940, 5928, 7410, 8731, 9880, 14820, 17462, 26193, 29640, 34924, 43655, 52386, 69848, 87310, 104772, 113503, 130965, 165889, 174620, 209544, 227006, 261930, 331778, 340509, 349240, 454012, 497667, 523860, 567515, 663556, 681018, 829445, 908024, 995334, 1047720, 1135030, 1327112, 1362036, 1658890, 1702545, 1990668, 2156557, 2270060, 2488335, 2724072, 3317780, 3405090, 3981336, 4313114, 4540120, 4976670, 6469671, 6635560, 6810180, 8626228, 9953340, 10782785, 12939342, 13620360, 17252456, 19906680, 21565570, 25878684, 32348355, 43131140, 51757368, 64696710, 86262280, 129393420, 258786840]

約数ペア:

[(1, 258786840), (2, 129393420), (3, 86262280), (4, 64696710), (5, 51757368), (6, 43131140), (8, 32348355), (10, 25878684), (12, 21565570), (13, 19906680), (15, 17252456), (19, 13620360), (20, 12939342), (24, 10782785), (26, 9953340), (30, 8626228), (38, 6810180), (39, 6635560), (40, 6469671), (52, 4976670), (57, 4540120), (60, 4313114), (65, 3981336), (76, 3405090), (78, 3317780), (95, 2724072), (104, 2488335), (114, 2270060), (120, 2156557), (130, 1990668), (152, 1702545), (156, 1658890), (190, 1362036), (195, 1327112), (228, 1135030), (247, 1047720), (260, 995334), (285, 908024), (312, 829445), (380, 681018), (390, 663556), (456, 567515), (494, 523860), (520, 497667), (570, 454012), (741, 349240), (760, 340509), (780, 331778), (988, 261930), (1140, 227006), (1235, 209544), (1482, 174620), (1560, 165889), (1976, 130965), (2280, 113503), (2470, 104772), (2964, 87310), (3705, 69848), (4940, 52386), (5928, 43655), (7410, 34924), (8731, 29640), (9880, 26193), (14820, 17462)]