20120910920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4157213}}^1$

素因数の和:4157246

約数の個数: 48

約数和(自身を含む): 49761851580

約数和(自身を除く): 29640940660

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 4157213, 8314426, 16628852, 20786065, 33257704, 41572130, 45729343, 83144260, 91458686, 166288520, 182917372, 228646715, 365834744, 457293430, 503022773, 914586860, 1006045546, 1829173720, 2012091092, 2515113865, 4024182184, 5030227730, 10060455460, 20120910920]

約数ペア:

[(1, 20120910920), (2, 10060455460), (4, 5030227730), (5, 4024182184), (8, 2515113865), (10, 2012091092), (11, 1829173720), (20, 1006045546), (22, 914586860), (40, 503022773), (44, 457293430), (55, 365834744), (88, 228646715), (110, 182917372), (121, 166288520), (220, 91458686), (242, 83144260), (440, 45729343), (484, 41572130), (605, 33257704), (968, 20786065), (1210, 16628852), (2420, 8314426), (4840, 4157213)]