127923280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 312105024

約数和(自身を除く): 184181744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 860, 907, 1640, 1720, 1763, 1814, 3280, 3440, 3526, 3628, 4535, 7052, 7256, 8815, 9070, 14104, 14512, 17630, 18140, 28208, 35260, 36280, 37187, 39001, 70520, 72560, 74374, 78002, 141040, 148748, 156004, 185935, 195005, 297496, 312008, 371870, 390010, 594992, 624016, 743740, 780020, 1487480, 1560040, 1599041, 2974960, 3120080, 3198082, 6396164, 7995205, 12792328, 15990410, 25584656, 31980820, 63961640, 127923280]

約数ペア:

[(1, 127923280), (2, 63961640), (4, 31980820), (5, 25584656), (8, 15990410), (10, 12792328), (16, 7995205), (20, 6396164), (40, 3198082), (41, 3120080), (43, 2974960), (80, 1599041), (82, 1560040), (86, 1487480), (164, 780020), (172, 743740), (205, 624016), (215, 594992), (328, 390010), (344, 371870), (410, 312008), (430, 297496), (656, 195005), (688, 185935), (820, 156004), (860, 148748), (907, 141040), (1640, 78002), (1720, 74374), (1763, 72560), (1814, 70520), (3280, 39001), (3440, 37187), (3526, 36280), (3628, 35260), (4535, 28208), (7052, 18140), (7256, 17630), (8815, 14512), (9070, 14104)]