89944220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 193814208

約数和(自身を除く): 103869988

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 653, 710, 970, 1306, 1420, 1940, 2612, 3265, 6530, 6887, 13060, 13774, 27548, 34435, 46363, 63341, 68870, 92726, 126682, 137740, 185452, 231815, 253364, 316705, 463630, 633410, 927260, 1266820, 4497211, 8994422, 17988844, 22486055, 44972110, 89944220]

約数ペア:

[(1, 89944220), (2, 44972110), (4, 22486055), (5, 17988844), (10, 8994422), (20, 4497211), (71, 1266820), (97, 927260), (142, 633410), (194, 463630), (284, 316705), (355, 253364), (388, 231815), (485, 185452), (653, 137740), (710, 126682), (970, 92726), (1306, 68870), (1420, 63341), (1940, 46363), (2612, 34435), (3265, 27548), (6530, 13774), (6887, 13060)]