31490680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2633}}^1$

素因数の和:2680

約数の個数: 64

約数和(自身を含む): 79652160

約数和(自身を除く): 48161480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2633, 2990, 5266, 5980, 10532, 11960, 13165, 21064, 26330, 34229, 52660, 60559, 68458, 105320, 121118, 136916, 171145, 242236, 273832, 302795, 342290, 484472, 605590, 684580, 787267, 1211180, 1369160, 1574534, 2422360, 3149068, 3936335, 6298136, 7872670, 15745340, 31490680]

約数ペア:

[(1, 31490680), (2, 15745340), (4, 7872670), (5, 6298136), (8, 3936335), (10, 3149068), (13, 2422360), (20, 1574534), (23, 1369160), (26, 1211180), (40, 787267), (46, 684580), (52, 605590), (65, 484472), (92, 342290), (104, 302795), (115, 273832), (130, 242236), (184, 171145), (230, 136916), (260, 121118), (299, 105320), (460, 68458), (520, 60559), (598, 52660), (920, 34229), (1196, 26330), (1495, 21064), (2392, 13165), (2633, 11960), (2990, 10532), (5266, 5980)]