80897980

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12923}}^1$

素因数の和:13245

約数の個数: 24

約数和(自身を含む): 170441712

約数和(自身を除く): 89543732

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 12923, 25846, 51692, 64615, 129230, 258460, 4044899, 8089798, 16179596, 20224495, 40448990, 80897980]

約数ペア:

[(1, 80897980), (2, 40448990), (4, 20224495), (5, 16179596), (10, 8089798), (20, 4044899), (313, 258460), (626, 129230), (1252, 64615), (1565, 51692), (3130, 25846), (6260, 12923)]