20484625

素因数分解:

$5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 29981952

約数和(自身を除く): 9497327

約数列:

[1, 5, 7, 25, 35, 41, 125, 175, 205, 287, 571, 875, 1025, 1435, 2855, 3997, 5125, 7175, 14275, 19985, 23411, 35875, 71375, 99925, 117055, 163877, 499625, 585275, 819385, 2926375, 4096925, 20484625]

約数ペア:

[(1, 20484625), (5, 4096925), (7, 2926375), (25, 819385), (35, 585275), (41, 499625), (125, 163877), (175, 117055), (205, 99925), (287, 71375), (571, 35875), (875, 23411), (1025, 19985), (1435, 14275), (2855, 7175), (3997, 5125)]