870898120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{410801}}^1$

素因数の和:410865

約数の個数: 32

約数和(自身を含む): 1996497720

約数和(自身を除く): 1125599600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 410801, 821602, 1643204, 2054005, 3286408, 4108010, 8216020, 16432040, 21772453, 43544906, 87089812, 108862265, 174179624, 217724530, 435449060, 870898120]

約数ペア:

[(1, 870898120), (2, 435449060), (4, 217724530), (5, 174179624), (8, 108862265), (10, 87089812), (20, 43544906), (40, 21772453), (53, 16432040), (106, 8216020), (212, 4108010), (265, 3286408), (424, 2054005), (530, 1643204), (1060, 821602), (2120, 410801)]