31800880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 79682400

約数和(自身を除く): 47881520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 67, 68, 80, 85, 134, 136, 170, 268, 272, 335, 340, 349, 536, 670, 680, 698, 1072, 1139, 1340, 1360, 1396, 1745, 2278, 2680, 2792, 3490, 4556, 5360, 5584, 5695, 5933, 6980, 9112, 11390, 11866, 13960, 18224, 22780, 23383, 23732, 27920, 29665, 45560, 46766, 47464, 59330, 91120, 93532, 94928, 116915, 118660, 187064, 233830, 237320, 374128, 397511, 467660, 474640, 795022, 935320, 1590044, 1870640, 1987555, 3180088, 3975110, 6360176, 7950220, 15900440, 31800880]

約数ペア:

[(1, 31800880), (2, 15900440), (4, 7950220), (5, 6360176), (8, 3975110), (10, 3180088), (16, 1987555), (17, 1870640), (20, 1590044), (34, 935320), (40, 795022), (67, 474640), (68, 467660), (80, 397511), (85, 374128), (134, 237320), (136, 233830), (170, 187064), (268, 118660), (272, 116915), (335, 94928), (340, 93532), (349, 91120), (536, 59330), (670, 47464), (680, 46766), (698, 45560), (1072, 29665), (1139, 27920), (1340, 23732), (1360, 23383), (1396, 22780), (1745, 18224), (2278, 13960), (2680, 11866), (2792, 11390), (3490, 9112), (4556, 6980), (5360, 5933), (5584, 5695)]