40321540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1609}}^1$

素因数の和:1804

約数の個数: 48

約数和(自身を含む): 97372800

約数和(自身を除く): 57051260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1609, 1790, 2506, 3218, 3580, 5012, 6265, 6436, 8045, 11263, 12530, 16090, 22526, 25060, 32180, 45052, 56315, 112630, 225260, 288011, 576022, 1152044, 1440055, 2016077, 2880110, 4032154, 5760220, 8064308, 10080385, 20160770, 40321540]

約数ペア:

[(1, 40321540), (2, 20160770), (4, 10080385), (5, 8064308), (7, 5760220), (10, 4032154), (14, 2880110), (20, 2016077), (28, 1440055), (35, 1152044), (70, 576022), (140, 288011), (179, 225260), (358, 112630), (716, 56315), (895, 45052), (1253, 32180), (1609, 25060), (1790, 22526), (2506, 16090), (3218, 12530), (3580, 11263), (5012, 8045), (6265, 6436)]