25885960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^2$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 59778540

約数和(自身を除く): 33892580

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 103, 122, 206, 244, 305, 412, 488, 515, 610, 824, 1030, 1220, 2060, 2440, 4120, 6283, 10609, 12566, 21218, 25132, 31415, 42436, 50264, 53045, 62830, 84872, 106090, 125660, 212180, 251320, 424360, 647149, 1294298, 2588596, 3235745, 5177192, 6471490, 12942980, 25885960]

約数ペア:

[(1, 25885960), (2, 12942980), (4, 6471490), (5, 5177192), (8, 3235745), (10, 2588596), (20, 1294298), (40, 647149), (61, 424360), (103, 251320), (122, 212180), (206, 125660), (244, 106090), (305, 84872), (412, 62830), (488, 53045), (515, 50264), (610, 42436), (824, 31415), (1030, 25132), (1220, 21218), (2060, 12566), (2440, 10609), (4120, 6283)]