691688990

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{449}}^1\times {\mathrm{1213}}^1$

素因数の和:1796

約数の個数: 32

約数和(自身を含む): 1258675200

約数和(自身を除く): 566986210

約数列:

[1, 2, 5, 10, 127, 254, 449, 635, 898, 1213, 1270, 2245, 2426, 4490, 6065, 12130, 57023, 114046, 154051, 285115, 308102, 544637, 570230, 770255, 1089274, 1540510, 2723185, 5446370, 69168899, 138337798, 345844495, 691688990]

約数ペア:

[(1, 691688990), (2, 345844495), (5, 138337798), (10, 69168899), (127, 5446370), (254, 2723185), (449, 1540510), (635, 1089274), (898, 770255), (1213, 570230), (1270, 544637), (2245, 308102), (2426, 285115), (4490, 154051), (6065, 114046), (12130, 57023)]