17987830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8861}}^1$

素因数の和:8904

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 20296010

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 8861, 17722, 44305, 62027, 88610, 124054, 256969, 310135, 513938, 620270, 1284845, 1798783, 2569690, 3597566, 8993915, 17987830]

約数ペア:

[(1, 17987830), (2, 8993915), (5, 3597566), (7, 2569690), (10, 1798783), (14, 1284845), (29, 620270), (35, 513938), (58, 310135), (70, 256969), (145, 124054), (203, 88610), (290, 62027), (406, 44305), (1015, 17722), (2030, 8861)]