168637880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{331}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 390113280

約数和(自身を除く): 221475400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 271, 331, 376, 470, 542, 662, 940, 1084, 1324, 1355, 1655, 1880, 2168, 2648, 2710, 3310, 5420, 6620, 10840, 12737, 13240, 15557, 25474, 31114, 50948, 62228, 63685, 77785, 89701, 101896, 124456, 127370, 155570, 179402, 254740, 311140, 358804, 448505, 509480, 622280, 717608, 897010, 1794020, 3588040, 4215947, 8431894, 16863788, 21079735, 33727576, 42159470, 84318940, 168637880]

約数ペア:

[(1, 168637880), (2, 84318940), (4, 42159470), (5, 33727576), (8, 21079735), (10, 16863788), (20, 8431894), (40, 4215947), (47, 3588040), (94, 1794020), (188, 897010), (235, 717608), (271, 622280), (331, 509480), (376, 448505), (470, 358804), (542, 311140), (662, 254740), (940, 179402), (1084, 155570), (1324, 127370), (1355, 124456), (1655, 101896), (1880, 89701), (2168, 77785), (2648, 63685), (2710, 62228), (3310, 50948), (5420, 31114), (6620, 25474), (10840, 15557), (12737, 13240)]