12942980

素因数分解:

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

素因数の和:276

約数の個数: 36

約数和(自身を含む): 27896652

約数和(自身を除く): 14953672

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 206, 244, 305, 412, 515, 610, 1030, 1220, 2060, 6283, 10609, 12566, 21218, 25132, 31415, 42436, 53045, 62830, 106090, 125660, 212180, 647149, 1294298, 2588596, 3235745, 6471490, 12942980]

約数ペア:

[(1, 12942980), (2, 6471490), (4, 3235745), (5, 2588596), (10, 1294298), (20, 647149), (61, 212180), (103, 125660), (122, 106090), (206, 62830), (244, 53045), (305, 42436), (412, 31415), (515, 25132), (610, 21218), (1030, 12566), (1220, 10609), (2060, 6283)]