18859675

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 24217200

約数和(自身を除く): 5357525

約数列:

[1, 5, 25, 61, 83, 149, 305, 415, 745, 1525, 2075, 3725, 5063, 9089, 12367, 25315, 45445, 61835, 126575, 227225, 309175, 754387, 3771935, 18859675]

約数ペア:

[(1, 18859675), (5, 3771935), (25, 754387), (61, 309175), (83, 227225), (149, 126575), (305, 61835), (415, 45445), (745, 25315), (1525, 12367), (2075, 9089), (3725, 5063)]