128087575

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 208986624

約数和(自身を除く): 80899049

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 77, 115, 121, 161, 175, 253, 263, 275, 385, 575, 605, 805, 847, 1265, 1315, 1771, 1841, 1925, 2783, 2893, 3025, 4025, 4235, 6049, 6325, 6575, 8855, 9205, 13915, 14465, 19481, 20251, 21175, 30245, 31823, 42343, 44275, 46025, 66539, 69575, 72325, 97405, 101255, 151225, 159115, 211715, 222761, 332695, 465773, 487025, 506275, 731929, 795575, 1058575, 1113805, 1663475, 2328865, 3659645, 5123503, 5569025, 11644325, 18298225, 25617515, 128087575]

約数ペア:

[(1, 128087575), (5, 25617515), (7, 18298225), (11, 11644325), (23, 5569025), (25, 5123503), (35, 3659645), (55, 2328865), (77, 1663475), (115, 1113805), (121, 1058575), (161, 795575), (175, 731929), (253, 506275), (263, 487025), (275, 465773), (385, 332695), (575, 222761), (605, 211715), (805, 159115), (847, 151225), (1265, 101255), (1315, 97405), (1771, 72325), (1841, 69575), (1925, 66539), (2783, 46025), (2893, 44275), (3025, 42343), (4025, 31823), (4235, 30245), (6049, 21175), (6325, 20251), (6575, 19481), (8855, 14465), (9205, 13915)]