20799525

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 36336960

約数和(自身を除く): 15537435

約数列:

[1, 3, 5, 15, 25, 29, 73, 75, 87, 131, 145, 219, 365, 393, 435, 655, 725, 1095, 1825, 1965, 2117, 2175, 3275, 3799, 5475, 6351, 9563, 9825, 10585, 11397, 18995, 28689, 31755, 47815, 52925, 56985, 94975, 143445, 158775, 239075, 277327, 284925, 717225, 831981, 1386635, 4159905, 6933175, 20799525]

約数ペア:

[(1, 20799525), (3, 6933175), (5, 4159905), (15, 1386635), (25, 831981), (29, 717225), (73, 284925), (75, 277327), (87, 239075), (131, 158775), (145, 143445), (219, 94975), (365, 56985), (393, 52925), (435, 47815), (655, 31755), (725, 28689), (1095, 18995), (1825, 11397), (1965, 10585), (2117, 9825), (2175, 9563), (3275, 6351), (3799, 5475)]