25040195

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 33480000

約数和(自身を除く): 8439805

約数列:

[1, 5, 19, 29, 61, 95, 145, 149, 305, 551, 745, 1159, 1769, 2755, 2831, 4321, 5795, 8845, 9089, 14155, 21605, 33611, 45445, 82099, 168055, 172691, 263581, 410495, 863455, 1317905, 5008039, 25040195]

約数ペア:

[(1, 25040195), (5, 5008039), (19, 1317905), (29, 863455), (61, 410495), (95, 263581), (145, 172691), (149, 168055), (305, 82099), (551, 45445), (745, 33611), (1159, 21605), (1769, 14155), (2755, 9089), (2831, 8845), (4321, 5795)]