80627920

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3719}}^1$

素因数の和:4003

約数の個数: 40

約数和(自身を含む): 188202240

約数和(自身を除く): 107574320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 1084, 1355, 2168, 2710, 3719, 4336, 5420, 7438, 10840, 14876, 18595, 21680, 29752, 37190, 59504, 74380, 148760, 297520, 1007849, 2015698, 4031396, 5039245, 8062792, 10078490, 16125584, 20156980, 40313960, 80627920]

約数ペア:

[(1, 80627920), (2, 40313960), (4, 20156980), (5, 16125584), (8, 10078490), (10, 8062792), (16, 5039245), (20, 4031396), (40, 2015698), (80, 1007849), (271, 297520), (542, 148760), (1084, 74380), (1355, 59504), (2168, 37190), (2710, 29752), (3719, 21680), (4336, 18595), (5420, 14876), (7438, 10840)]