154834988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2043

約数の個数: 72

約数和(自身を含む): 355358976

約数和(自身を除く): 200523988

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 121, 154, 161, 242, 253, 308, 322, 484, 506, 644, 847, 1012, 1694, 1771, 1987, 2783, 3388, 3542, 3974, 5566, 7084, 7948, 11132, 13909, 19481, 21857, 27818, 38962, 43714, 45701, 55636, 77924, 87428, 91402, 152999, 182804, 240427, 305998, 319907, 480854, 502711, 611996, 639814, 961708, 1005422, 1279628, 1682989, 2010844, 3365978, 3518977, 5529821, 6731956, 7037954, 11059642, 14075908, 22119284, 38708747, 77417494, 154834988]

約数ペア:

[(1, 154834988), (2, 77417494), (4, 38708747), (7, 22119284), (11, 14075908), (14, 11059642), (22, 7037954), (23, 6731956), (28, 5529821), (44, 3518977), (46, 3365978), (77, 2010844), (92, 1682989), (121, 1279628), (154, 1005422), (161, 961708), (242, 639814), (253, 611996), (308, 502711), (322, 480854), (484, 319907), (506, 305998), (644, 240427), (847, 182804), (1012, 152999), (1694, 91402), (1771, 87428), (1987, 77924), (2783, 55636), (3388, 45701), (3542, 43714), (3974, 38962), (5566, 27818), (7084, 21857), (7948, 19481), (11132, 13909)]