20176837640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3094607}}^1$

素因数の和:3094781

約数の個数: 32

約数和(自身を含む): 45676414080

約数和(自身を除く): 25499576440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 3094607, 6189214, 12378428, 15473035, 24756856, 30946070, 61892140, 123784280, 504420941, 1008841882, 2017683764, 2522104705, 4035367528, 5044209410, 10088418820, 20176837640]

約数ペア:

[(1, 20176837640), (2, 10088418820), (4, 5044209410), (5, 4035367528), (8, 2522104705), (10, 2017683764), (20, 1008841882), (40, 504420941), (163, 123784280), (326, 61892140), (652, 30946070), (815, 24756856), (1304, 15473035), (1630, 12378428), (3260, 6189214), (6520, 3094607)]