642603920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1147507}}^1$

素因数の和:1147527

約数の個数: 40

約数和(自身を含む): 1707491904

約数和(自身を除く): 1064887984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1147507, 2295014, 4590028, 5737535, 8032549, 9180056, 11475070, 16065098, 18360112, 22950140, 32130196, 40162745, 45900280, 64260392, 80325490, 91800560, 128520784, 160650980, 321301960, 642603920]

約数ペア:

[(1, 642603920), (2, 321301960), (4, 160650980), (5, 128520784), (7, 91800560), (8, 80325490), (10, 64260392), (14, 45900280), (16, 40162745), (20, 32130196), (28, 22950140), (35, 18360112), (40, 16065098), (56, 11475070), (70, 9180056), (80, 8032549), (112, 5737535), (140, 4590028), (280, 2295014), (560, 1147507)]