28508120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17383}}^1$

素因数の和:17435

約数の個数: 32

約数和(自身を含む): 65711520

約数和(自身を除く): 37203400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17383, 34766, 69532, 86915, 139064, 173830, 347660, 695320, 712703, 1425406, 2850812, 3563515, 5701624, 7127030, 14254060, 28508120]

約数ペア:

[(1, 28508120), (2, 14254060), (4, 7127030), (5, 5701624), (8, 3563515), (10, 2850812), (20, 1425406), (40, 712703), (41, 695320), (82, 347660), (164, 173830), (205, 139064), (328, 86915), (410, 69532), (820, 34766), (1640, 17383)]