20743625

素因数分解:

$5^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 29971968

約数和(自身を除く): 9228343

約数列:

[1, 5, 7, 25, 35, 125, 151, 157, 175, 755, 785, 875, 1057, 1099, 3775, 3925, 5285, 5495, 18875, 19625, 23707, 26425, 27475, 118535, 132125, 137375, 165949, 592675, 829745, 2963375, 4148725, 20743625]

約数ペア:

[(1, 20743625), (5, 4148725), (7, 2963375), (25, 829745), (35, 592675), (125, 165949), (151, 137375), (157, 132125), (175, 118535), (755, 27475), (785, 26425), (875, 23707), (1057, 19625), (1099, 18875), (3775, 5495), (3925, 5285)]