20405910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{97171}}^1$

素因数の和:97188

約数の個数: 32

約数和(自身を含む): 55971072

約数和(自身を除く): 35565162

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 97171, 194342, 291513, 485855, 583026, 680197, 971710, 1360394, 1457565, 2040591, 2915130, 3400985, 4081182, 6801970, 10202955, 20405910]

約数ペア:

[(1, 20405910), (2, 10202955), (3, 6801970), (5, 4081182), (6, 3400985), (7, 2915130), (10, 2040591), (14, 1457565), (15, 1360394), (21, 971710), (30, 680197), (35, 583026), (42, 485855), (70, 291513), (105, 194342), (210, 97171)]