28167220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 33473996

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 181, 251, 310, 362, 502, 620, 724, 905, 1004, 1255, 1810, 2510, 3620, 5020, 5611, 7781, 11222, 15562, 22444, 28055, 31124, 38905, 45431, 56110, 77810, 90862, 112220, 155620, 181724, 227155, 454310, 908620, 1408361, 2816722, 5633444, 7041805, 14083610, 28167220]

約数ペア:

[(1, 28167220), (2, 14083610), (4, 7041805), (5, 5633444), (10, 2816722), (20, 1408361), (31, 908620), (62, 454310), (124, 227155), (155, 181724), (181, 155620), (251, 112220), (310, 90862), (362, 77810), (502, 56110), (620, 45431), (724, 38905), (905, 31124), (1004, 28055), (1255, 22444), (1810, 15562), (2510, 11222), (3620, 7781), (5020, 5611)]