128475420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{2141257}}^1$

素因数の和:2141269

約数の個数: 24

約数和(自身を含む): 359731344

約数和(自身を除く): 231255924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 2141257, 4282514, 6423771, 8565028, 10706285, 12847542, 21412570, 25695084, 32118855, 42825140, 64237710, 128475420]

約数ペア:

[(1, 128475420), (2, 64237710), (3, 42825140), (4, 32118855), (5, 25695084), (6, 21412570), (10, 12847542), (12, 10706285), (15, 8565028), (20, 6423771), (30, 4282514), (60, 2141257)]