18503665480

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{424007}}^1$

素因数の和:425109

約数の個数: 32

約数和(自身を含む): 41671506240

約数和(自身を除く): 23167840760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 5455, 8728, 10910, 21820, 43640, 424007, 848014, 1696028, 2120035, 3392056, 4240070, 8480140, 16960280, 462591637, 925183274, 1850366548, 2312958185, 3700733096, 4625916370, 9251832740, 18503665480]

約数ペア:

[(1, 18503665480), (2, 9251832740), (4, 4625916370), (5, 3700733096), (8, 2312958185), (10, 1850366548), (20, 925183274), (40, 462591637), (1091, 16960280), (2182, 8480140), (4364, 4240070), (5455, 3392056), (8728, 2120035), (10910, 1696028), (21820, 848014), (43640, 424007)]