20927510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 19196650

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 257, 479, 514, 958, 1285, 2395, 2570, 4369, 4790, 8143, 8738, 16286, 21845, 40715, 43690, 81430, 123103, 246206, 615515, 1231030, 2092751, 4185502, 10463755, 20927510]

約数ペア:

[(1, 20927510), (2, 10463755), (5, 4185502), (10, 2092751), (17, 1231030), (34, 615515), (85, 246206), (170, 123103), (257, 81430), (479, 43690), (514, 40715), (958, 21845), (1285, 16286), (2395, 8738), (2570, 8143), (4369, 4790)]