39978375

素因数分解:

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

素因数の和:249

約数の個数: 64

約数和(自身を含む): 72683520

約数和(自身を除く): 32705145

約数列:

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

約数ペア:

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