80641520

素因数分解:

$2^4\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1747}}^1$

素因数の和:2337

約数の個数: 40

約数和(自身を含む): 187923984

約数和(自身を除く): 107282464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 577, 1154, 1747, 2308, 2885, 3494, 4616, 5770, 6988, 8735, 9232, 11540, 13976, 17470, 23080, 27952, 34940, 46160, 69880, 139760, 1008019, 2016038, 4032076, 5040095, 8064152, 10080190, 16128304, 20160380, 40320760, 80641520]

約数ペア:

[(1, 80641520), (2, 40320760), (4, 20160380), (5, 16128304), (8, 10080190), (10, 8064152), (16, 5040095), (20, 4032076), (40, 2016038), (80, 1008019), (577, 139760), (1154, 69880), (1747, 46160), (2308, 34940), (2885, 27952), (3494, 23080), (4616, 17470), (5770, 13976), (6988, 11540), (8735, 9232)]