20019664

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4831}}^1$

素因数の和:4883

約数の個数: 40

約数和(自身を含む): 45536768

約数和(自身を除く): 25517104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 4831, 9662, 19324, 33817, 38648, 67634, 77296, 135268, 178747, 270536, 357494, 541072, 714988, 1251229, 1429976, 2502458, 2859952, 5004916, 10009832, 20019664]

約数ペア:

[(1, 20019664), (2, 10009832), (4, 5004916), (7, 2859952), (8, 2502458), (14, 1429976), (16, 1251229), (28, 714988), (37, 541072), (56, 357494), (74, 270536), (112, 178747), (148, 135268), (259, 77296), (296, 67634), (518, 38648), (592, 33817), (1036, 19324), (2072, 9662), (4144, 4831)]