79868780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2081}}^1$

素因数の和:2210

約数の個数: 48

約数和(自身を含む): 178385760

約数和(自身を除く): 98516980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1919, 2020, 2081, 3838, 4162, 7676, 8324, 9595, 10405, 19190, 20810, 38380, 39539, 41620, 79078, 158156, 197695, 210181, 395390, 420362, 790780, 840724, 1050905, 2101810, 3993439, 4203620, 7986878, 15973756, 19967195, 39934390, 79868780]

約数ペア:

[(1, 79868780), (2, 39934390), (4, 19967195), (5, 15973756), (10, 7986878), (19, 4203620), (20, 3993439), (38, 2101810), (76, 1050905), (95, 840724), (101, 790780), (190, 420362), (202, 395390), (380, 210181), (404, 197695), (505, 158156), (1010, 79078), (1919, 41620), (2020, 39539), (2081, 38380), (3838, 20810), (4162, 19190), (7676, 10405), (8324, 9595)]