19148980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 41847120

約数和(自身を除く): 22698140

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 113, 148, 185, 226, 229, 370, 452, 458, 565, 740, 916, 1130, 1145, 2260, 2290, 4181, 4580, 8362, 8473, 16724, 16946, 20905, 25877, 33892, 41810, 42365, 51754, 83620, 84730, 103508, 129385, 169460, 258770, 517540, 957449, 1914898, 3829796, 4787245, 9574490, 19148980]

約数ペア:

[(1, 19148980), (2, 9574490), (4, 4787245), (5, 3829796), (10, 1914898), (20, 957449), (37, 517540), (74, 258770), (113, 169460), (148, 129385), (185, 103508), (226, 84730), (229, 83620), (370, 51754), (452, 42365), (458, 41810), (565, 33892), (740, 25877), (916, 20905), (1130, 16946), (1145, 16724), (2260, 8473), (2290, 8362), (4181, 4580)]