521307320

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{14369}}^1$

素因数の和:15287

約数の個数: 32

約数和(自身を含む): 1174316400

約数和(自身を除く): 653009080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4535, 7256, 9070, 14369, 18140, 28738, 36280, 57476, 71845, 114952, 143690, 287380, 574760, 13032683, 26065366, 52130732, 65163415, 104261464, 130326830, 260653660, 521307320]

約数ペア:

[(1, 521307320), (2, 260653660), (4, 130326830), (5, 104261464), (8, 65163415), (10, 52130732), (20, 26065366), (40, 13032683), (907, 574760), (1814, 287380), (3628, 143690), (4535, 114952), (7256, 71845), (9070, 57476), (14369, 36280), (18140, 28738)]