80777900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:879

約数の個数: 72

約数和(自身を含む): 201820416

約数和(自身を除く): 121042516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 167, 175, 334, 350, 668, 691, 700, 835, 1169, 1382, 1670, 2338, 2764, 3340, 3455, 4175, 4676, 4837, 5845, 6910, 8350, 9674, 11690, 13820, 16700, 17275, 19348, 23380, 24185, 29225, 34550, 48370, 58450, 69100, 96740, 115397, 116900, 120925, 230794, 241850, 461588, 483700, 576985, 807779, 1153970, 1615558, 2307940, 2884925, 3231116, 4038895, 5769850, 8077790, 11539700, 16155580, 20194475, 40388950, 80777900]

約数ペア:

[(1, 80777900), (2, 40388950), (4, 20194475), (5, 16155580), (7, 11539700), (10, 8077790), (14, 5769850), (20, 4038895), (25, 3231116), (28, 2884925), (35, 2307940), (50, 1615558), (70, 1153970), (100, 807779), (140, 576985), (167, 483700), (175, 461588), (334, 241850), (350, 230794), (668, 120925), (691, 116900), (700, 115397), (835, 96740), (1169, 69100), (1382, 58450), (1670, 48370), (2338, 34550), (2764, 29225), (3340, 24185), (3455, 23380), (4175, 19348), (4676, 17275), (4837, 16700), (5845, 13820), (6910, 11690), (8350, 9674)]