20512781552

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9223373}}^1$

素因数の和:9223520

約数の個数: 20

約数和(自身を含む): 40029443160

約数和(自身を除く): 19516661608

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9223373, 18446746, 36893492, 73786984, 147573968, 1282048847, 2564097694, 5128195388, 10256390776, 20512781552]

約数ペア:

[(1, 20512781552), (2, 10256390776), (4, 5128195388), (8, 2564097694), (16, 1282048847), (139, 147573968), (278, 73786984), (556, 36893492), (1112, 18446746), (2224, 9223373)]