18449737160

素因数分解:

$2^3\times 5^1\times {\mathrm{10909}}^1\times {\mathrm{42281}}^1$

素因数の和:53201

約数の個数: 32

約数和(自身を含む): 41516695800

約数和(自身を除く): 23066958640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10909, 21818, 42281, 43636, 54545, 84562, 87272, 109090, 169124, 211405, 218180, 338248, 422810, 436360, 845620, 1691240, 461243429, 922486858, 1844973716, 2306217145, 3689947432, 4612434290, 9224868580, 18449737160]

約数ペア:

[(1, 18449737160), (2, 9224868580), (4, 4612434290), (5, 3689947432), (8, 2306217145), (10, 1844973716), (20, 922486858), (40, 461243429), (10909, 1691240), (21818, 845620), (42281, 436360), (43636, 422810), (54545, 338248), (84562, 218180), (87272, 211405), (109090, 169124)]