31316390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 66484800

約数和(自身を除く): 35168410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 79, 98, 158, 245, 395, 490, 553, 790, 809, 1106, 1618, 2765, 3871, 4045, 5530, 5663, 7742, 8090, 11326, 19355, 28315, 38710, 39641, 56630, 63911, 79282, 127822, 198205, 319555, 396410, 447377, 639110, 894754, 2236885, 3131639, 4473770, 6263278, 15658195, 31316390]

約数ペア:

[(1, 31316390), (2, 15658195), (5, 6263278), (7, 4473770), (10, 3131639), (14, 2236885), (35, 894754), (49, 639110), (70, 447377), (79, 396410), (98, 319555), (158, 198205), (245, 127822), (395, 79282), (490, 63911), (553, 56630), (790, 39641), (809, 38710), (1106, 28315), (1618, 19355), (2765, 11326), (3871, 8090), (4045, 7742), (5530, 5663)]