17921480

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2503}}^1$

素因数の和:2693

約数の個数: 32

約数和(自身を含む): 40564800

約数和(自身を除く): 22643320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2503, 3580, 5006, 7160, 10012, 12515, 20024, 25030, 50060, 100120, 448037, 896074, 1792148, 2240185, 3584296, 4480370, 8960740, 17921480]

約数ペア:

[(1, 17921480), (2, 8960740), (4, 4480370), (5, 3584296), (8, 2240185), (10, 1792148), (20, 896074), (40, 448037), (179, 100120), (358, 50060), (716, 25030), (895, 20024), (1432, 12515), (1790, 10012), (2503, 7160), (3580, 5006)]