18470120

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{829}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 41682600

約数和(自身を除く): 23212480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 829, 1114, 1658, 2228, 2785, 3316, 4145, 4456, 5570, 6632, 8290, 11140, 16580, 22280, 33160, 461753, 923506, 1847012, 2308765, 3694024, 4617530, 9235060, 18470120]

約数ペア:

[(1, 18470120), (2, 9235060), (4, 4617530), (5, 3694024), (8, 2308765), (10, 1847012), (20, 923506), (40, 461753), (557, 33160), (829, 22280), (1114, 16580), (1658, 11140), (2228, 8290), (2785, 6632), (3316, 5570), (4145, 4456)]