28119920

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1123}}^1$

素因数の和:1449

約数の個数: 40

約数和(自身を含む): 65646096

約数和(自身を除く): 37526176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1123, 1252, 1565, 2246, 2504, 3130, 4492, 5008, 5615, 6260, 8984, 11230, 12520, 17968, 22460, 25040, 44920, 89840, 351499, 702998, 1405996, 1757495, 2811992, 3514990, 5623984, 7029980, 14059960, 28119920]

約数ペア:

[(1, 28119920), (2, 14059960), (4, 7029980), (5, 5623984), (8, 3514990), (10, 2811992), (16, 1757495), (20, 1405996), (40, 702998), (80, 351499), (313, 89840), (626, 44920), (1123, 25040), (1252, 22460), (1565, 17968), (2246, 12520), (2504, 11230), (3130, 8984), (4492, 6260), (5008, 5615)]