138031220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1753}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 301744128

約数和(自身を除く): 163712908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 1753, 2540, 3506, 3937, 7012, 7874, 8765, 15748, 17530, 19685, 35060, 39370, 54343, 78740, 108686, 217372, 222631, 271715, 445262, 543430, 890524, 1086860, 1113155, 2226310, 4452620, 6901561, 13803122, 27606244, 34507805, 69015610, 138031220]

約数ペア:

[(1, 138031220), (2, 69015610), (4, 34507805), (5, 27606244), (10, 13803122), (20, 6901561), (31, 4452620), (62, 2226310), (124, 1113155), (127, 1086860), (155, 890524), (254, 543430), (310, 445262), (508, 271715), (620, 222631), (635, 217372), (1270, 108686), (1753, 78740), (2540, 54343), (3506, 39370), (3937, 35060), (7012, 19685), (7874, 17530), (8765, 15748)]