56720740

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 121669632

約数和(自身を除く): 64948892

約数列:

[1, 2, 4, 5, 10, 20, 127, 137, 163, 254, 274, 326, 508, 548, 635, 652, 685, 815, 1270, 1370, 1630, 2540, 2740, 3260, 17399, 20701, 22331, 34798, 41402, 44662, 69596, 82804, 86995, 89324, 103505, 111655, 173990, 207010, 223310, 347980, 414020, 446620, 2836037, 5672074, 11344148, 14180185, 28360370, 56720740]

約数ペア:

[(1, 56720740), (2, 28360370), (4, 14180185), (5, 11344148), (10, 5672074), (20, 2836037), (127, 446620), (137, 414020), (163, 347980), (254, 223310), (274, 207010), (326, 173990), (508, 111655), (548, 103505), (635, 89324), (652, 86995), (685, 82804), (815, 69596), (1270, 44662), (1370, 41402), (1630, 34798), (2540, 22331), (2740, 20701), (3260, 17399)]