40200020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2843}}^1$

素因数の和:2960

約数の個数: 48

約数和(自身を含む): 97469568

約数和(自身を除く): 57269548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 2843, 3535, 5686, 7070, 11372, 14140, 14215, 19901, 28430, 39802, 56860, 79604, 99505, 199010, 287143, 398020, 574286, 1148572, 1435715, 2010001, 2871430, 4020002, 5742860, 8040004, 10050005, 20100010, 40200020]

約数ペア:

[(1, 40200020), (2, 20100010), (4, 10050005), (5, 8040004), (7, 5742860), (10, 4020002), (14, 2871430), (20, 2010001), (28, 1435715), (35, 1148572), (70, 574286), (101, 398020), (140, 287143), (202, 199010), (404, 99505), (505, 79604), (707, 56860), (1010, 39802), (1414, 28430), (2020, 19901), (2828, 14215), (2843, 14140), (3535, 11372), (5686, 7070)]