12220975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1267

約数の個数: 24

約数和(自身を含む): 16860032

約数和(自身を除く): 4639057

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 1213, 2015, 6065, 10075, 15769, 30325, 37603, 78845, 188015, 394225, 488839, 940075, 2444195, 12220975]

約数ペア:

[(1, 12220975), (5, 2444195), (13, 940075), (25, 488839), (31, 394225), (65, 188015), (155, 78845), (325, 37603), (403, 30325), (775, 15769), (1213, 10075), (2015, 6065)]