28180048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2303

約数の個数: 40

約数和(自身を含む): 59789576

約数和(自身を除く): 31609528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 2221, 3172, 4442, 6344, 8884, 12688, 17768, 28873, 35536, 57746, 115492, 135481, 230984, 270962, 461968, 541924, 1083848, 1761253, 2167696, 3522506, 7045012, 14090024, 28180048]

約数ペア:

[(1, 28180048), (2, 14090024), (4, 7045012), (8, 3522506), (13, 2167696), (16, 1761253), (26, 1083848), (52, 541924), (61, 461968), (104, 270962), (122, 230984), (208, 135481), (244, 115492), (488, 57746), (793, 35536), (976, 28873), (1586, 17768), (2221, 12688), (3172, 8884), (4442, 6344)]