31499910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:167

約数の個数: 144

約数和(自身を含む): 94208400

約数和(自身を除く): 62708490

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 30, 38, 39, 45, 57, 65, 78, 90, 95, 109, 114, 117, 130, 169, 171, 190, 195, 218, 234, 247, 285, 327, 338, 342, 390, 494, 507, 545, 570, 585, 654, 741, 845, 855, 981, 1014, 1090, 1170, 1235, 1417, 1482, 1521, 1635, 1690, 1710, 1962, 2071, 2223, 2470, 2535, 2834, 3042, 3211, 3270, 3705, 4142, 4251, 4446, 4905, 5070, 6213, 6422, 7085, 7410, 7605, 8502, 9633, 9810, 10355, 11115, 12426, 12753, 14170, 15210, 16055, 18421, 18639, 19266, 20710, 21255, 22230, 25506, 26923, 28899, 31065, 32110, 36842, 37278, 42510, 48165, 53846, 55263, 57798, 62130, 63765, 80769, 92105, 93195, 96330, 110526, 127530, 134615, 144495, 161538, 165789, 184210, 186390, 242307, 269230, 276315, 288990, 331578, 349999, 403845, 484614, 552630, 699998, 807690, 828945, 1049997, 1211535, 1657890, 1749995, 2099994, 2423070, 3149991, 3499990, 5249985, 6299982, 10499970, 15749955, 31499910]

約数ペア:

[(1, 31499910), (2, 15749955), (3, 10499970), (5, 6299982), (6, 5249985), (9, 3499990), (10, 3149991), (13, 2423070), (15, 2099994), (18, 1749995), (19, 1657890), (26, 1211535), (30, 1049997), (38, 828945), (39, 807690), (45, 699998), (57, 552630), (65, 484614), (78, 403845), (90, 349999), (95, 331578), (109, 288990), (114, 276315), (117, 269230), (130, 242307), (169, 186390), (171, 184210), (190, 165789), (195, 161538), (218, 144495), (234, 134615), (247, 127530), (285, 110526), (327, 96330), (338, 93195), (342, 92105), (390, 80769), (494, 63765), (507, 62130), (545, 57798), (570, 55263), (585, 53846), (654, 48165), (741, 42510), (845, 37278), (855, 36842), (981, 32110), (1014, 31065), (1090, 28899), (1170, 26923), (1235, 25506), (1417, 22230), (1482, 21255), (1521, 20710), (1635, 19266), (1690, 18639), (1710, 18421), (1962, 16055), (2071, 15210), (2223, 14170), (2470, 12753), (2535, 12426), (2834, 11115), (3042, 10355), (3211, 9810), (3270, 9633), (3705, 8502), (4142, 7605), (4251, 7410), (4446, 7085), (4905, 6422), (5070, 6213)]