18641960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{881}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 43897140

約数和(自身を除く): 25255180

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 881, 920, 1058, 1762, 2116, 2645, 3524, 4232, 4405, 5290, 7048, 8810, 10580, 17620, 20263, 21160, 35240, 40526, 81052, 101315, 162104, 202630, 405260, 466049, 810520, 932098, 1864196, 2330245, 3728392, 4660490, 9320980, 18641960]

約数ペア:

[(1, 18641960), (2, 9320980), (4, 4660490), (5, 3728392), (8, 2330245), (10, 1864196), (20, 932098), (23, 810520), (40, 466049), (46, 405260), (92, 202630), (115, 162104), (184, 101315), (230, 81052), (460, 40526), (529, 35240), (881, 21160), (920, 20263), (1058, 17620), (1762, 10580), (2116, 8810), (2645, 7048), (3524, 5290), (4232, 4405)]