20323445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 27156480

約数和(自身を除く): 6833035

約数列:

[1, 5, 19, 31, 67, 95, 103, 155, 335, 515, 589, 1273, 1957, 2077, 2945, 3193, 6365, 6901, 9785, 10385, 15965, 34505, 39463, 60667, 131119, 197315, 213931, 303335, 655595, 1069655, 4064689, 20323445]

約数ペア:

[(1, 20323445), (5, 4064689), (19, 1069655), (31, 655595), (67, 303335), (95, 213931), (103, 197315), (155, 131119), (335, 60667), (515, 39463), (589, 34505), (1273, 15965), (1957, 10385), (2077, 9785), (2945, 6901), (3193, 6365)]