28863965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 11052835

約数列:

[1, 5, 13, 23, 43, 65, 115, 215, 299, 449, 559, 989, 1495, 2245, 2795, 4945, 5837, 10327, 12857, 19307, 29185, 51635, 64285, 96535, 134251, 250991, 444061, 671255, 1254955, 2220305, 5772793, 28863965]

約数ペア:

[(1, 28863965), (5, 5772793), (13, 2220305), (23, 1254955), (43, 671255), (65, 444061), (115, 250991), (215, 134251), (299, 96535), (449, 64285), (559, 51635), (989, 29185), (1495, 19307), (2245, 12857), (2795, 10327), (4945, 5837)]