31403970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 94348800

約数和(自身を除く): 62944830

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 27, 30, 39, 45, 46, 54, 65, 69, 78, 90, 115, 117, 130, 135, 138, 195, 207, 230, 234, 270, 299, 345, 351, 389, 390, 414, 585, 598, 621, 690, 702, 778, 897, 1035, 1167, 1170, 1242, 1495, 1755, 1794, 1945, 2070, 2334, 2691, 2990, 3105, 3501, 3510, 3890, 4485, 5057, 5382, 5835, 6210, 7002, 8073, 8947, 8970, 10114, 10503, 11670, 13455, 15171, 16146, 17505, 17894, 21006, 25285, 26841, 26910, 30342, 35010, 40365, 44735, 45513, 50570, 52515, 53682, 75855, 80523, 80730, 89470, 91026, 105030, 116311, 134205, 136539, 151710, 161046, 227565, 232622, 241569, 268410, 273078, 348933, 402615, 455130, 483138, 581555, 682695, 697866, 805230, 1046799, 1163110, 1207845, 1365390, 1744665, 2093598, 2415690, 3140397, 3489330, 5233995, 6280794, 10467990, 15701985, 31403970]

約数ペア:

[(1, 31403970), (2, 15701985), (3, 10467990), (5, 6280794), (6, 5233995), (9, 3489330), (10, 3140397), (13, 2415690), (15, 2093598), (18, 1744665), (23, 1365390), (26, 1207845), (27, 1163110), (30, 1046799), (39, 805230), (45, 697866), (46, 682695), (54, 581555), (65, 483138), (69, 455130), (78, 402615), (90, 348933), (115, 273078), (117, 268410), (130, 241569), (135, 232622), (138, 227565), (195, 161046), (207, 151710), (230, 136539), (234, 134205), (270, 116311), (299, 105030), (345, 91026), (351, 89470), (389, 80730), (390, 80523), (414, 75855), (585, 53682), (598, 52515), (621, 50570), (690, 45513), (702, 44735), (778, 40365), (897, 35010), (1035, 30342), (1167, 26910), (1170, 26841), (1242, 25285), (1495, 21006), (1755, 17894), (1794, 17505), (1945, 16146), (2070, 15171), (2334, 13455), (2691, 11670), (2990, 10503), (3105, 10114), (3501, 8970), (3510, 8947), (3890, 8073), (4485, 7002), (5057, 6210), (5382, 5835)]