15945975

素因数分解:

$3^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:688

約数の個数: 36

約数和(自身を含む): 28832232

約数和(自身を除く): 12886257

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 131, 225, 393, 541, 655, 1179, 1623, 1965, 2705, 3275, 4869, 5895, 8115, 9825, 13525, 24345, 29475, 40575, 70871, 121725, 212613, 354355, 637839, 1063065, 1771775, 3189195, 5315325, 15945975]

約数ペア:

[(1, 15945975), (3, 5315325), (5, 3189195), (9, 1771775), (15, 1063065), (25, 637839), (45, 354355), (75, 212613), (131, 121725), (225, 70871), (393, 40575), (541, 29475), (655, 24345), (1179, 13525), (1623, 9825), (1965, 8115), (2705, 5895), (3275, 4869)]