20120080

素因数分解:

$2^4\times 5^1\times {\mathrm{251501}}^1$

素因数の和:251514

約数の個数: 20

約数和(自身を含む): 46779372

約数和(自身を除く): 26659292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251501, 503002, 1006004, 1257505, 2012008, 2515010, 4024016, 5030020, 10060040, 20120080]

約数ペア:

[(1, 20120080), (2, 10060040), (4, 5030020), (5, 4024016), (8, 2515010), (10, 2012008), (16, 1257505), (20, 1006004), (40, 503002), (80, 251501)]