25938020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 57456000

約数和(自身を除く): 31517980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 226, 230, 452, 460, 499, 565, 998, 1130, 1996, 2260, 2495, 2599, 4990, 5198, 9980, 10396, 11477, 12995, 22954, 25990, 45908, 51980, 56387, 57385, 112774, 114770, 225548, 229540, 281935, 563870, 1127740, 1296901, 2593802, 5187604, 6484505, 12969010, 25938020]

約数ペア:

[(1, 25938020), (2, 12969010), (4, 6484505), (5, 5187604), (10, 2593802), (20, 1296901), (23, 1127740), (46, 563870), (92, 281935), (113, 229540), (115, 225548), (226, 114770), (230, 112774), (452, 57385), (460, 56387), (499, 51980), (565, 45908), (998, 25990), (1130, 22954), (1996, 12995), (2260, 11477), (2495, 10396), (2599, 9980), (4990, 5198)]