638648164

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{3847}}^1$

素因数の和:3894

約数の個数: 72

約数和(自身を含む): 1432995200

約数和(自身を除く): 794347036

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 343, 484, 539, 686, 847, 1078, 1372, 1694, 2156, 3388, 3773, 3847, 5929, 7546, 7694, 11858, 15092, 15388, 23716, 26929, 41503, 42317, 53858, 83006, 84634, 107716, 166012, 169268, 188503, 296219, 377006, 465487, 592438, 754012, 930974, 1184876, 1319521, 1861948, 2073533, 2639042, 3258409, 4147066, 5278084, 6516818, 8294132, 13033636, 14514731, 22808863, 29029462, 45617726, 58058924, 91235452, 159662041, 319324082, 638648164]

約数ペア:

[(1, 638648164), (2, 319324082), (4, 159662041), (7, 91235452), (11, 58058924), (14, 45617726), (22, 29029462), (28, 22808863), (44, 14514731), (49, 13033636), (77, 8294132), (98, 6516818), (121, 5278084), (154, 4147066), (196, 3258409), (242, 2639042), (308, 2073533), (343, 1861948), (484, 1319521), (539, 1184876), (686, 930974), (847, 754012), (1078, 592438), (1372, 465487), (1694, 377006), (2156, 296219), (3388, 188503), (3773, 169268), (3847, 166012), (5929, 107716), (7546, 84634), (7694, 83006), (11858, 53858), (15092, 42317), (15388, 41503), (23716, 26929)]