19026680

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1163}}^1$

素因数の和:1583

約数の個数: 32

約数和(自身を含む): 42951600

約数和(自身を除く): 23924920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1163, 1636, 2045, 2326, 3272, 4090, 4652, 5815, 8180, 9304, 11630, 16360, 23260, 46520, 475667, 951334, 1902668, 2378335, 3805336, 4756670, 9513340, 19026680]

約数ペア:

[(1, 19026680), (2, 9513340), (4, 4756670), (5, 3805336), (8, 2378335), (10, 1902668), (20, 951334), (40, 475667), (409, 46520), (818, 23260), (1163, 16360), (1636, 11630), (2045, 9304), (2326, 8180), (3272, 5815), (4090, 4652)]