81802396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{3923}}^1$

素因数の和:4341

約数の個数: 24

約数和(自身を含む): 154589904

約数和(自身を除く): 72787508

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 1604, 3923, 5213, 7846, 10426, 15692, 20852, 50999, 101998, 203996, 1573123, 3146246, 6292492, 20450599, 40901198, 81802396]

約数ペア:

[(1, 81802396), (2, 40901198), (4, 20450599), (13, 6292492), (26, 3146246), (52, 1573123), (401, 203996), (802, 101998), (1604, 50999), (3923, 20852), (5213, 15692), (7846, 10426)]