208078125

素因数分解:

$3^1\times 5^6\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 56

約数和(自身を含む): 363745344

約数和(自身を除く): 155667219

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 193, 345, 375, 575, 579, 625, 965, 1725, 1875, 2875, 2895, 3125, 4439, 4825, 8625, 9375, 13317, 14375, 14475, 15625, 22195, 24125, 43125, 46875, 66585, 71875, 72375, 110975, 120625, 215625, 332925, 359375, 361875, 554875, 603125, 1078125, 1664625, 1809375, 2774375, 3015625, 8323125, 9046875, 13871875, 41615625, 69359375, 208078125]

約数ペア:

[(1, 208078125), (3, 69359375), (5, 41615625), (15, 13871875), (23, 9046875), (25, 8323125), (69, 3015625), (75, 2774375), (115, 1809375), (125, 1664625), (193, 1078125), (345, 603125), (375, 554875), (575, 361875), (579, 359375), (625, 332925), (965, 215625), (1725, 120625), (1875, 110975), (2875, 72375), (2895, 71875), (3125, 66585), (4439, 46875), (4825, 43125), (8625, 24125), (9375, 22195), (13317, 15625), (14375, 14475)]