80495560

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{7481}}^1$

素因数の和:7761

約数の個数: 32

約数和(自身を含む): 181812600

約数和(自身を除く): 101317040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 7481, 10760, 14962, 29924, 37405, 59848, 74810, 149620, 299240, 2012389, 4024778, 8049556, 10061945, 16099112, 20123890, 40247780, 80495560]

約数ペア:

[(1, 80495560), (2, 40247780), (4, 20123890), (5, 16099112), (8, 10061945), (10, 8049556), (20, 4024778), (40, 2012389), (269, 299240), (538, 149620), (1076, 74810), (1345, 59848), (2152, 37405), (2690, 29924), (5380, 14962), (7481, 10760)]