319517780

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{19699}}^1$

素因数の和:20519

約数の個数: 24

約数和(自身を含む): 671848800

約数和(自身を除く): 352331020

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 16220, 19699, 39398, 78796, 98495, 196990, 393980, 15975889, 31951778, 63903556, 79879445, 159758890, 319517780]

約数ペア:

[(1, 319517780), (2, 159758890), (4, 79879445), (5, 63903556), (10, 31951778), (20, 15975889), (811, 393980), (1622, 196990), (3244, 98495), (4055, 78796), (8110, 39398), (16220, 19699)]