3963980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4217}}^1$

素因数の和:4273

約数の個数: 24

約数和(自身を含む): 8503488

約数和(自身を除く): 4539508

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 4217, 8434, 16868, 21085, 42170, 84340, 198199, 396398, 792796, 990995, 1981990, 3963980]

約数ペア:

[(1, 3963980), (2, 1981990), (4, 990995), (5, 792796), (10, 396398), (20, 198199), (47, 84340), (94, 42170), (188, 21085), (235, 16868), (470, 8434), (940, 4217)]