20121448280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7085017}}^1$

素因数の和:7085099

約数の個数: 32

約数和(自身を含む): 45910916640

約数和(自身を除く): 25789468360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7085017, 14170034, 28340068, 35425085, 56680136, 70850170, 141700340, 283400680, 503036207, 1006072414, 2012144828, 2515181035, 4024289656, 5030362070, 10060724140, 20121448280]

約数ペア:

[(1, 20121448280), (2, 10060724140), (4, 5030362070), (5, 4024289656), (8, 2515181035), (10, 2012144828), (20, 1006072414), (40, 503036207), (71, 283400680), (142, 141700340), (284, 70850170), (355, 56680136), (568, 35425085), (710, 28340068), (1420, 14170034), (2840, 7085017)]