18000125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 64

約数和(自身を含む): 28304640

約数和(自身を除く): 10304515

約数列:

[1, 5, 11, 13, 19, 25, 53, 55, 65, 95, 125, 143, 209, 247, 265, 275, 325, 475, 583, 689, 715, 1007, 1045, 1235, 1325, 1375, 1625, 2375, 2717, 2915, 3445, 3575, 5035, 5225, 6175, 6625, 7579, 11077, 13091, 13585, 14575, 17225, 17875, 25175, 26125, 30875, 37895, 55385, 65455, 67925, 72875, 86125, 125875, 144001, 189475, 276925, 327275, 339625, 720005, 947375, 1384625, 1636375, 3600025, 18000125]

約数ペア:

[(1, 18000125), (5, 3600025), (11, 1636375), (13, 1384625), (19, 947375), (25, 720005), (53, 339625), (55, 327275), (65, 276925), (95, 189475), (125, 144001), (143, 125875), (209, 86125), (247, 72875), (265, 67925), (275, 65455), (325, 55385), (475, 37895), (583, 30875), (689, 26125), (715, 25175), (1007, 17875), (1045, 17225), (1235, 14575), (1325, 13585), (1375, 13091), (1625, 11077), (2375, 7579), (2717, 6625), (2915, 6175), (3445, 5225), (3575, 5035)]