289306765

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 421956864

約数和(自身を除く): 132650099

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 121, 187, 253, 391, 605, 935, 1223, 1265, 1955, 2057, 2783, 4301, 6115, 10285, 13453, 13915, 20791, 21505, 28129, 47311, 67265, 103955, 140645, 147983, 228701, 236555, 309419, 478193, 739915, 1143505, 1547095, 2390965, 2515711, 3403609, 5260123, 12578555, 17018045, 26300615, 57861353, 289306765]

約数ペア:

[(1, 289306765), (5, 57861353), (11, 26300615), (17, 17018045), (23, 12578555), (55, 5260123), (85, 3403609), (115, 2515711), (121, 2390965), (187, 1547095), (253, 1143505), (391, 739915), (605, 478193), (935, 309419), (1223, 236555), (1265, 228701), (1955, 147983), (2057, 140645), (2783, 103955), (4301, 67265), (6115, 47311), (10285, 28129), (13453, 21505), (13915, 20791)]