81179760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:331

約数の個数: 160

約数和(自身を含む): 270464832

約数和(自身を除く): 189285072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 101, 102, 120, 136, 170, 197, 202, 204, 240, 255, 272, 303, 340, 394, 404, 408, 505, 510, 591, 606, 680, 788, 808, 816, 985, 1010, 1020, 1182, 1212, 1360, 1515, 1576, 1616, 1717, 1970, 2020, 2040, 2364, 2424, 2955, 3030, 3152, 3349, 3434, 3940, 4040, 4080, 4728, 4848, 5151, 5910, 6060, 6698, 6868, 7880, 8080, 8585, 9456, 10047, 10302, 11820, 12120, 13396, 13736, 15760, 16745, 17170, 19897, 20094, 20604, 23640, 24240, 25755, 26792, 27472, 33490, 34340, 39794, 40188, 41208, 47280, 50235, 51510, 53584, 59691, 66980, 68680, 79588, 80376, 82416, 99485, 100470, 103020, 119382, 133960, 137360, 159176, 160752, 198970, 200940, 206040, 238764, 267920, 298455, 318352, 338249, 397940, 401880, 412080, 477528, 596910, 676498, 795880, 803760, 955056, 1014747, 1193820, 1352996, 1591760, 1691245, 2029494, 2387640, 2705992, 3382490, 4058988, 4775280, 5073735, 5411984, 6764980, 8117976, 10147470, 13529960, 16235952, 20294940, 27059920, 40589880, 81179760]

約数ペア:

[(1, 81179760), (2, 40589880), (3, 27059920), (4, 20294940), (5, 16235952), (6, 13529960), (8, 10147470), (10, 8117976), (12, 6764980), (15, 5411984), (16, 5073735), (17, 4775280), (20, 4058988), (24, 3382490), (30, 2705992), (34, 2387640), (40, 2029494), (48, 1691245), (51, 1591760), (60, 1352996), (68, 1193820), (80, 1014747), (85, 955056), (101, 803760), (102, 795880), (120, 676498), (136, 596910), (170, 477528), (197, 412080), (202, 401880), (204, 397940), (240, 338249), (255, 318352), (272, 298455), (303, 267920), (340, 238764), (394, 206040), (404, 200940), (408, 198970), (505, 160752), (510, 159176), (591, 137360), (606, 133960), (680, 119382), (788, 103020), (808, 100470), (816, 99485), (985, 82416), (1010, 80376), (1020, 79588), (1182, 68680), (1212, 66980), (1360, 59691), (1515, 53584), (1576, 51510), (1616, 50235), (1717, 47280), (1970, 41208), (2020, 40188), (2040, 39794), (2364, 34340), (2424, 33490), (2955, 27472), (3030, 26792), (3152, 25755), (3349, 24240), (3434, 23640), (3940, 20604), (4040, 20094), (4080, 19897), (4728, 17170), (4848, 16745), (5151, 15760), (5910, 13736), (6060, 13396), (6698, 12120), (6868, 11820), (7880, 10302), (8080, 10047), (8585, 9456)]