189921875

素因数分解:

$5^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:76

約数の個数: 64

約数和(自身を含む): 295311744

約数和(自身を除く): 105389869

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 125, 143, 187, 221, 275, 325, 425, 625, 715, 935, 1105, 1375, 1625, 2125, 2431, 3125, 3575, 4675, 5525, 6875, 8125, 10625, 12155, 15625, 17875, 23375, 27625, 34375, 40625, 53125, 60775, 78125, 89375, 116875, 138125, 171875, 203125, 265625, 303875, 446875, 584375, 690625, 859375, 1015625, 1328125, 1519375, 2234375, 2921875, 3453125, 7596875, 11171875, 14609375, 17265625, 37984375, 189921875]

約数ペア:

[(1, 189921875), (5, 37984375), (11, 17265625), (13, 14609375), (17, 11171875), (25, 7596875), (55, 3453125), (65, 2921875), (85, 2234375), (125, 1519375), (143, 1328125), (187, 1015625), (221, 859375), (275, 690625), (325, 584375), (425, 446875), (625, 303875), (715, 265625), (935, 203125), (1105, 171875), (1375, 138125), (1625, 116875), (2125, 89375), (2431, 78125), (3125, 60775), (3575, 53125), (4675, 40625), (5525, 34375), (6875, 27625), (8125, 23375), (10625, 17875), (12155, 15625)]