18901510

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 35212320

約数和(自身を除く): 16310810

約数列:

[1, 2, 5, 10, 43, 86, 113, 215, 226, 389, 430, 565, 778, 1130, 1945, 3890, 4859, 9718, 16727, 24295, 33454, 43957, 48590, 83635, 87914, 167270, 219785, 439570, 1890151, 3780302, 9450755, 18901510]

約数ペア:

[(1, 18901510), (2, 9450755), (5, 3780302), (10, 1890151), (43, 439570), (86, 219785), (113, 167270), (215, 87914), (226, 83635), (389, 48590), (430, 43957), (565, 33454), (778, 24295), (1130, 16727), (1945, 9718), (3890, 4859)]