313156940

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{39047}}^1$

素因数の和:39457

約数の個数: 24

約数和(自身を含む): 659286432

約数和(自身を除く): 346129492

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 39047, 78094, 156188, 195235, 390470, 780940, 15657847, 31315694, 62631388, 78289235, 156578470, 313156940]

約数ペア:

[(1, 313156940), (2, 156578470), (4, 78289235), (5, 62631388), (10, 31315694), (20, 15657847), (401, 780940), (802, 390470), (1604, 195235), (2005, 156188), (4010, 78094), (8020, 39047)]