320420125

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{607}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 414296064

約数和(自身を除く): 93875939

約数列:

[1, 5, 25, 41, 103, 125, 205, 515, 607, 1025, 2575, 3035, 4223, 5125, 12875, 15175, 21115, 24887, 62521, 75875, 105575, 124435, 312605, 527875, 622175, 1563025, 2563361, 3110875, 7815125, 12816805, 64084025, 320420125]

約数ペア:

[(1, 320420125), (5, 64084025), (25, 12816805), (41, 7815125), (103, 3110875), (125, 2563361), (205, 1563025), (515, 622175), (607, 527875), (1025, 312605), (2575, 124435), (3035, 105575), (4223, 75875), (5125, 62521), (12875, 24887), (15175, 21115)]