28623740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 62614944

約数和(自身を除く): 33991204

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 521, 670, 820, 1042, 1340, 2084, 2605, 2747, 5210, 5494, 10420, 10988, 13735, 21361, 27470, 34907, 42722, 54940, 69814, 85444, 106805, 139628, 174535, 213610, 349070, 427220, 698140, 1431187, 2862374, 5724748, 7155935, 14311870, 28623740]

約数ペア:

[(1, 28623740), (2, 14311870), (4, 7155935), (5, 5724748), (10, 2862374), (20, 1431187), (41, 698140), (67, 427220), (82, 349070), (134, 213610), (164, 174535), (205, 139628), (268, 106805), (335, 85444), (410, 69814), (521, 54940), (670, 42722), (820, 34907), (1042, 27470), (1340, 21361), (2084, 13735), (2605, 10988), (2747, 10420), (5210, 5494)]