201428420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{141851}}^1$

素因数の和:141931

約数の個数: 24

約数和(自身を含む): 428960448

約数和(自身を除く): 227532028

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 141851, 283702, 567404, 709255, 1418510, 2837020, 10071421, 20142842, 40285684, 50357105, 100714210, 201428420]

約数ペア:

[(1, 201428420), (2, 100714210), (4, 50357105), (5, 40285684), (10, 20142842), (20, 10071421), (71, 2837020), (142, 1418510), (284, 709255), (355, 567404), (710, 283702), (1420, 141851)]