199891875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 363883520

約数和(自身を除く): 163991645

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 125, 155, 181, 285, 375, 465, 475, 543, 589, 625, 775, 905, 1425, 1767, 1875, 2325, 2375, 2715, 2945, 3439, 3875, 4525, 5611, 7125, 8835, 10317, 11625, 11875, 13575, 14725, 16833, 17195, 19375, 22625, 28055, 35625, 44175, 51585, 58125, 67875, 73625, 84165, 85975, 106609, 113125, 140275, 220875, 257925, 319827, 339375, 368125, 420825, 429875, 533045, 701375, 1104375, 1289625, 1599135, 2104125, 2149375, 2665225, 3506875, 6448125, 7995675, 10520625, 13326125, 39978375, 66630625, 199891875]

約数ペア:

[(1, 199891875), (3, 66630625), (5, 39978375), (15, 13326125), (19, 10520625), (25, 7995675), (31, 6448125), (57, 3506875), (75, 2665225), (93, 2149375), (95, 2104125), (125, 1599135), (155, 1289625), (181, 1104375), (285, 701375), (375, 533045), (465, 429875), (475, 420825), (543, 368125), (589, 339375), (625, 319827), (775, 257925), (905, 220875), (1425, 140275), (1767, 113125), (1875, 106609), (2325, 85975), (2375, 84165), (2715, 73625), (2945, 67875), (3439, 58125), (3875, 51585), (4525, 44175), (5611, 35625), (7125, 28055), (8835, 22625), (10317, 19375), (11625, 17195), (11875, 16833), (13575, 14725)]