31931010

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:597

約数の個数: 80

約数和(自身を含む): 87120000

約数和(自身を除く): 55188990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 81, 90, 135, 158, 162, 237, 270, 395, 405, 474, 499, 711, 790, 810, 998, 1185, 1422, 1497, 2133, 2370, 2495, 2994, 3555, 4266, 4491, 4990, 6399, 7110, 7485, 8982, 10665, 12798, 13473, 14970, 21330, 22455, 26946, 31995, 39421, 40419, 44910, 63990, 67365, 78842, 80838, 118263, 134730, 197105, 202095, 236526, 354789, 394210, 404190, 591315, 709578, 1064367, 1182630, 1773945, 2128734, 3193101, 3547890, 5321835, 6386202, 10643670, 15965505, 31931010]

約数ペア:

[(1, 31931010), (2, 15965505), (3, 10643670), (5, 6386202), (6, 5321835), (9, 3547890), (10, 3193101), (15, 2128734), (18, 1773945), (27, 1182630), (30, 1064367), (45, 709578), (54, 591315), (79, 404190), (81, 394210), (90, 354789), (135, 236526), (158, 202095), (162, 197105), (237, 134730), (270, 118263), (395, 80838), (405, 78842), (474, 67365), (499, 63990), (711, 44910), (790, 40419), (810, 39421), (998, 31995), (1185, 26946), (1422, 22455), (1497, 21330), (2133, 14970), (2370, 13473), (2495, 12798), (2994, 10665), (3555, 8982), (4266, 7485), (4491, 7110), (4990, 6399)]