3971690

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1021}}^1$

素因数の和:1417

約数の個数: 16

約数和(自身を含む): 7174440

約数和(自身を除く): 3202750

約数列:

[1, 2, 5, 10, 389, 778, 1021, 1945, 2042, 3890, 5105, 10210, 397169, 794338, 1985845, 3971690]

約数ペア:

[(1, 3971690), (2, 1985845), (5, 794338), (10, 397169), (389, 10210), (778, 5105), (1021, 3890), (1945, 2042)]