15380740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18757}}^1$

素因数の和:18807

約数の個数: 24

約数和(自身を含む): 33089112

約数和(自身を除く): 17708372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 18757, 37514, 75028, 93785, 187570, 375140, 769037, 1538074, 3076148, 3845185, 7690370, 15380740]

約数ペア:

[(1, 15380740), (2, 7690370), (4, 3845185), (5, 3076148), (10, 1538074), (20, 769037), (41, 375140), (82, 187570), (164, 93785), (205, 75028), (410, 37514), (820, 18757)]