72688240

素因数分解:

$2^4\times 5^1\times {\mathrm{908603}}^1$

素因数の和:908616

約数の個数: 20

約数和(自身を含む): 169000344

約数和(自身を除く): 96312104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 908603, 1817206, 3634412, 4543015, 7268824, 9086030, 14537648, 18172060, 36344120, 72688240]

約数ペア:

[(1, 72688240), (2, 36344120), (4, 18172060), (5, 14537648), (8, 9086030), (10, 7268824), (16, 4543015), (20, 3634412), (40, 1817206), (80, 908603)]