128428620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{2140477}}^1$

素因数の和:2140489

約数の個数: 24

約数和(自身を含む): 359600304

約数和(自身を除く): 231171684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 2140477, 4280954, 6421431, 8561908, 10702385, 12842862, 21404770, 25685724, 32107155, 42809540, 64214310, 128428620]

約数ペア:

[(1, 128428620), (2, 64214310), (3, 42809540), (4, 32107155), (5, 25685724), (6, 21404770), (10, 12842862), (12, 10702385), (15, 8561908), (20, 6421431), (30, 4280954), (60, 2140477)]