20249080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12347}}^1$

素因数の和:12399

約数の個数: 32

約数和(自身を含む): 46675440

約数和(自身を除く): 26426360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12347, 24694, 49388, 61735, 98776, 123470, 246940, 493880, 506227, 1012454, 2024908, 2531135, 4049816, 5062270, 10124540, 20249080]

約数ペア:

[(1, 20249080), (2, 10124540), (4, 5062270), (5, 4049816), (8, 2531135), (10, 2024908), (20, 1012454), (40, 506227), (41, 493880), (82, 246940), (164, 123470), (205, 98776), (328, 61735), (410, 49388), (820, 24694), (1640, 12347)]