72971390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{177979}}^1$

素因数の和:178027

約数の個数: 16

約数和(自身を含む): 134552880

約数和(自身を除く): 61581490

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 177979, 355958, 889895, 1779790, 7297139, 14594278, 36485695, 72971390]

約数ペア:

[(1, 72971390), (2, 36485695), (5, 14594278), (10, 7297139), (41, 1779790), (82, 889895), (205, 355958), (410, 177979)]