40005364

素因数分解:

$2^2\times 7^2\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:928

約数の個数: 36

約数和(自身を含む): 81802980

約数和(自身を除く): 41797616

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 401, 509, 802, 1018, 1604, 2036, 2807, 3563, 5614, 7126, 11228, 14252, 19649, 24941, 39298, 49882, 78596, 99764, 204109, 408218, 816436, 1428763, 2857526, 5715052, 10001341, 20002682, 40005364]

約数ペア:

[(1, 40005364), (2, 20002682), (4, 10001341), (7, 5715052), (14, 2857526), (28, 1428763), (49, 816436), (98, 408218), (196, 204109), (401, 99764), (509, 78596), (802, 49882), (1018, 39298), (1604, 24941), (2036, 19649), (2807, 14252), (3563, 11228), (5614, 7126)]