4643990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 9102240

約数和(自身を除く): 4458250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 257, 278, 514, 695, 1285, 1390, 1807, 2570, 3341, 3614, 6682, 9035, 16705, 18070, 33410, 35723, 71446, 178615, 357230, 464399, 928798, 2321995, 4643990]

約数ペア:

[(1, 4643990), (2, 2321995), (5, 928798), (10, 464399), (13, 357230), (26, 178615), (65, 71446), (130, 35723), (139, 33410), (257, 18070), (278, 16705), (514, 9035), (695, 6682), (1285, 3614), (1390, 3341), (1807, 2570)]