28939040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13913}}^1$

素因数の和:13941

約数の個数: 48

約数和(自身を含む): 73632888

約数和(自身を除く): 44693848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13913, 27826, 55652, 69565, 111304, 139130, 180869, 222608, 278260, 361738, 445216, 556520, 723476, 904345, 1113040, 1446952, 1808690, 2226080, 2893904, 3617380, 5787808, 7234760, 14469520, 28939040]

約数ペア:

[(1, 28939040), (2, 14469520), (4, 7234760), (5, 5787808), (8, 3617380), (10, 2893904), (13, 2226080), (16, 1808690), (20, 1446952), (26, 1113040), (32, 904345), (40, 723476), (52, 556520), (65, 445216), (80, 361738), (104, 278260), (130, 222608), (160, 180869), (208, 139130), (260, 111304), (416, 69565), (520, 55652), (1040, 27826), (2080, 13913)]