20543080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16567}}^1$

素因数の和:16609

約数の個数: 32

約数和(自身を含む): 47715840

約数和(自身を除く): 27172760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16567, 33134, 66268, 82835, 132536, 165670, 331340, 513577, 662680, 1027154, 2054308, 2567885, 4108616, 5135770, 10271540, 20543080]

約数ペア:

[(1, 20543080), (2, 10271540), (4, 5135770), (5, 4108616), (8, 2567885), (10, 2054308), (20, 1027154), (31, 662680), (40, 513577), (62, 331340), (124, 165670), (155, 132536), (248, 82835), (310, 66268), (620, 33134), (1240, 16567)]