2021479640

素因数分解:

$2^3\times 5^1\times {\mathrm{4507}}^1\times {\mathrm{11213}}^1$

素因数の和:15731

約数の個数: 32

約数和(自身を含む): 4549744080

約数和(自身を除く): 2528264440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4507, 9014, 11213, 18028, 22426, 22535, 36056, 44852, 45070, 56065, 89704, 90140, 112130, 180280, 224260, 448520, 50536991, 101073982, 202147964, 252684955, 404295928, 505369910, 1010739820, 2021479640]

約数ペア:

[(1, 2021479640), (2, 1010739820), (4, 505369910), (5, 404295928), (8, 252684955), (10, 202147964), (20, 101073982), (40, 50536991), (4507, 448520), (9014, 224260), (11213, 180280), (18028, 112130), (22426, 90140), (22535, 89704), (36056, 56065), (44852, 45070)]