18888730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1811}}^1$

素因数の和:1974

約数の個数: 32

約数和(自身を含む): 39139200

約数和(自身を除く): 20250470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 1811, 2086, 3622, 5215, 9055, 10430, 12677, 18110, 25354, 63385, 126770, 269839, 539678, 1349195, 1888873, 2698390, 3777746, 9444365, 18888730]

約数ペア:

[(1, 18888730), (2, 9444365), (5, 3777746), (7, 2698390), (10, 1888873), (14, 1349195), (35, 539678), (70, 269839), (149, 126770), (298, 63385), (745, 25354), (1043, 18110), (1490, 12677), (1811, 10430), (2086, 9055), (3622, 5215)]