2820225

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 4817152

約数和(自身を除く): 1996927

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 1213, 2325, 3639, 6065, 18195, 30325, 37603, 90975, 112809, 188015, 564045, 940075, 2820225]

約数ペア:

[(1, 2820225), (3, 940075), (5, 564045), (15, 188015), (25, 112809), (31, 90975), (75, 37603), (93, 30325), (155, 18195), (465, 6065), (775, 3639), (1213, 2325)]