20121070672

素因数分解:

$2^4\times {\mathrm{20323}}^1\times {\mathrm{61879}}^1$

素因数の和:82210

約数の個数: 20

約数和(自身を含む): 38987122720

約数和(自身を除く): 18866052048

約数列:

[1, 2, 4, 8, 16, 20323, 40646, 61879, 81292, 123758, 162584, 247516, 325168, 495032, 990064, 1257566917, 2515133834, 5030267668, 10060535336, 20121070672]

約数ペア:

[(1, 20121070672), (2, 10060535336), (4, 5030267668), (8, 2515133834), (16, 1257566917), (20323, 990064), (40646, 495032), (61879, 325168), (81292, 247516), (123758, 162584)]