1997417915

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 2470374720

約数和(自身を除く): 472956805

約数列:

[1, 5, 101, 109, 131, 277, 505, 545, 655, 1385, 11009, 13231, 14279, 27977, 30193, 36287, 55045, 66155, 71395, 139885, 150965, 181435, 1442179, 3049493, 3664987, 3955283, 7210895, 15247465, 18324935, 19776415, 399483583, 1997417915]

約数ペア:

[(1, 1997417915), (5, 399483583), (101, 19776415), (109, 18324935), (131, 15247465), (277, 7210895), (505, 3955283), (545, 3664987), (655, 3049493), (1385, 1442179), (11009, 181435), (13231, 150965), (14279, 139885), (27977, 71395), (30193, 66155), (36287, 55045)]