16445890

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4021}}^1$

素因数の和:4437

約数の個数: 16

約数和(自身を含む): 29682360

約数和(自身を除く): 13236470

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4021, 4090, 8042, 20105, 40210, 1644589, 3289178, 8222945, 16445890]

約数ペア:

[(1, 16445890), (2, 8222945), (5, 3289178), (10, 1644589), (409, 40210), (818, 20105), (2045, 8042), (4021, 4090)]