71978680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{701}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 172860480

約数和(自身を除く): 100881800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 151, 170, 302, 340, 604, 680, 701, 755, 1208, 1402, 1510, 2567, 2804, 3020, 3505, 5134, 5608, 6040, 7010, 10268, 11917, 12835, 14020, 20536, 23834, 25670, 28040, 47668, 51340, 59585, 95336, 102680, 105851, 119170, 211702, 238340, 423404, 476680, 529255, 846808, 1058510, 1799467, 2117020, 3598934, 4234040, 7197868, 8997335, 14395736, 17994670, 35989340, 71978680]

約数ペア:

[(1, 71978680), (2, 35989340), (4, 17994670), (5, 14395736), (8, 8997335), (10, 7197868), (17, 4234040), (20, 3598934), (34, 2117020), (40, 1799467), (68, 1058510), (85, 846808), (136, 529255), (151, 476680), (170, 423404), (302, 238340), (340, 211702), (604, 119170), (680, 105851), (701, 102680), (755, 95336), (1208, 59585), (1402, 51340), (1510, 47668), (2567, 28040), (2804, 25670), (3020, 23834), (3505, 20536), (5134, 14020), (5608, 12835), (6040, 11917), (7010, 10268)]