128272860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10037}}^1$

素因数の和:10123

約数の個数: 72

約数和(自身を含む): 394613856

約数和(自身を除く): 266340996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 10037, 12780, 20074, 30111, 40148, 50185, 60222, 90333, 100370, 120444, 150555, 180666, 200740, 301110, 361332, 451665, 602220, 712627, 903330, 1425254, 1806660, 2137881, 2850508, 3563135, 4275762, 6413643, 7126270, 8551524, 10689405, 12827286, 14252540, 21378810, 25654572, 32068215, 42757620, 64136430, 128272860]

約数ペア:

[(1, 128272860), (2, 64136430), (3, 42757620), (4, 32068215), (5, 25654572), (6, 21378810), (9, 14252540), (10, 12827286), (12, 10689405), (15, 8551524), (18, 7126270), (20, 6413643), (30, 4275762), (36, 3563135), (45, 2850508), (60, 2137881), (71, 1806660), (90, 1425254), (142, 903330), (180, 712627), (213, 602220), (284, 451665), (355, 361332), (426, 301110), (639, 200740), (710, 180666), (852, 150555), (1065, 120444), (1278, 100370), (1420, 90333), (2130, 60222), (2556, 50185), (3195, 40148), (4260, 30111), (6390, 20074), (10037, 12780)]