90570920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{18713}}^1$

素因数の和:18746

約数の個数: 48

約数和(自身を含む): 224006580

約数和(自身を除く): 133435660

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, 18713, 37426, 74852, 93565, 149704, 187130, 205843, 374260, 411686, 748520, 823372, 1029215, 1646744, 2058430, 2264273, 4116860, 4528546, 8233720, 9057092, 11321365, 18114184, 22642730, 45285460, 90570920]

約数ペア:

[(1, 90570920), (2, 45285460), (4, 22642730), (5, 18114184), (8, 11321365), (10, 9057092), (11, 8233720), (20, 4528546), (22, 4116860), (40, 2264273), (44, 2058430), (55, 1646744), (88, 1029215), (110, 823372), (121, 748520), (220, 411686), (242, 374260), (440, 205843), (484, 187130), (605, 149704), (968, 93565), (1210, 74852), (2420, 37426), (4840, 18713)]