291212090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{5477}}^1$

素因数の和:5906

約数の個数: 32

約数和(自身を含む): 565986960

約数和(自身を除く): 274774870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 818, 2045, 4090, 5317, 5477, 10634, 10954, 26585, 27385, 53170, 54770, 71201, 142402, 356005, 712010, 2240093, 4480186, 11200465, 22400930, 29121209, 58242418, 145606045, 291212090]

約数ペア:

[(1, 291212090), (2, 145606045), (5, 58242418), (10, 29121209), (13, 22400930), (26, 11200465), (65, 4480186), (130, 2240093), (409, 712010), (818, 356005), (2045, 142402), (4090, 71201), (5317, 54770), (5477, 53170), (10634, 27385), (10954, 26585)]