20129968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2879}}^1$

素因数の和:2929

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 22724432

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2879, 3496, 5758, 6992, 11516, 23032, 46064, 54701, 66217, 109402, 132434, 218804, 264868, 437608, 529736, 875216, 1059472, 1258123, 2516246, 5032492, 10064984, 20129968]

約数ペア:

[(1, 20129968), (2, 10064984), (4, 5032492), (8, 2516246), (16, 1258123), (19, 1059472), (23, 875216), (38, 529736), (46, 437608), (76, 264868), (92, 218804), (152, 132434), (184, 109402), (304, 66217), (368, 54701), (437, 46064), (874, 23032), (1748, 11516), (2879, 6992), (3496, 5758)]