28164075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 50353920

約数和(自身を除く): 22189845

約数列:

[1, 3, 5, 15, 23, 25, 29, 69, 75, 87, 115, 145, 345, 435, 563, 575, 667, 725, 1689, 1725, 2001, 2175, 2815, 3335, 8445, 10005, 12949, 14075, 16327, 16675, 38847, 42225, 48981, 50025, 64745, 81635, 194235, 244905, 323725, 375521, 408175, 971175, 1126563, 1224525, 1877605, 5632815, 9388025, 28164075]

約数ペア:

[(1, 28164075), (3, 9388025), (5, 5632815), (15, 1877605), (23, 1224525), (25, 1126563), (29, 971175), (69, 408175), (75, 375521), (87, 323725), (115, 244905), (145, 194235), (345, 81635), (435, 64745), (563, 50025), (575, 48981), (667, 42225), (725, 38847), (1689, 16675), (1725, 16327), (2001, 14075), (2175, 12949), (2815, 10005), (3335, 8445)]