28912880

素因数分解:

$2^4\times 5^1\times {\mathrm{361411}}^1$

素因数の和:361424

約数の個数: 20

約数和(自身を含む): 67222632

約数和(自身を除く): 38309752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 361411, 722822, 1445644, 1807055, 2891288, 3614110, 5782576, 7228220, 14456440, 28912880]

約数ペア:

[(1, 28912880), (2, 14456440), (4, 7228220), (5, 5782576), (8, 3614110), (10, 2891288), (16, 1807055), (20, 1445644), (40, 722822), (80, 361411)]