72920240

素因数分解:

$2^4\times 5^1\times {\mathrm{911503}}^1$

素因数の和:911516

約数の個数: 20

約数和(自身を含む): 169539744

約数和(自身を除く): 96619504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911503, 1823006, 3646012, 4557515, 7292024, 9115030, 14584048, 18230060, 36460120, 72920240]

約数ペア:

[(1, 72920240), (2, 36460120), (4, 18230060), (5, 14584048), (8, 9115030), (10, 7292024), (16, 4557515), (20, 3646012), (40, 1823006), (80, 911503)]