210930980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{811273}}^1$

素因数の和:811295

約数の個数: 24

約数和(自身を含む): 477029112

約数和(自身を除く): 266098132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 811273, 1622546, 3245092, 4056365, 8112730, 10546549, 16225460, 21093098, 42186196, 52732745, 105465490, 210930980]

約数ペア:

[(1, 210930980), (2, 105465490), (4, 52732745), (5, 42186196), (10, 21093098), (13, 16225460), (20, 10546549), (26, 8112730), (52, 4056365), (65, 3245092), (130, 1622546), (260, 811273)]