123215540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{839}}^1\times {\mathrm{1049}}^1$

素因数の和:1904

約数の個数: 48

約数和(自身を含む): 296352000

約数和(自身を除く): 173136460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 839, 1049, 1678, 2098, 3356, 4195, 4196, 5245, 5873, 7343, 8390, 10490, 11746, 14686, 16780, 20980, 23492, 29365, 29372, 36715, 58730, 73430, 117460, 146860, 880111, 1760222, 3520444, 4400555, 6160777, 8801110, 12321554, 17602220, 24643108, 30803885, 61607770, 123215540]

約数ペア:

[(1, 123215540), (2, 61607770), (4, 30803885), (5, 24643108), (7, 17602220), (10, 12321554), (14, 8801110), (20, 6160777), (28, 4400555), (35, 3520444), (70, 1760222), (140, 880111), (839, 146860), (1049, 117460), (1678, 73430), (2098, 58730), (3356, 36715), (4195, 29372), (4196, 29365), (5245, 23492), (5873, 20980), (7343, 16780), (8390, 14686), (10490, 11746)]