72160420

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{2579}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 151704000

約数和(自身を除く): 79543580

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2579, 2798, 5158, 5596, 6995, 10316, 12895, 13990, 25790, 27980, 51580, 3608021, 7216042, 14432084, 18040105, 36080210, 72160420]

約数ペア:

[(1, 72160420), (2, 36080210), (4, 18040105), (5, 14432084), (10, 7216042), (20, 3608021), (1399, 51580), (2579, 27980), (2798, 25790), (5158, 13990), (5596, 12895), (6995, 10316)]