686553980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1297}}^1$

素因数の和:1531

約数の個数: 96

約数和(自身を含む): 1744512000

約数和(自身を除く): 1057958020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 199, 266, 380, 398, 532, 665, 796, 995, 1297, 1330, 1393, 1990, 2594, 2660, 2786, 3781, 3980, 5188, 5572, 6485, 6965, 7562, 9079, 12970, 13930, 15124, 18158, 18905, 24643, 25940, 26467, 27860, 36316, 37810, 45395, 49286, 52934, 75620, 90790, 98572, 105868, 123215, 132335, 172501, 181580, 246430, 258103, 264670, 345002, 492860, 516206, 529340, 690004, 862505, 1032412, 1290515, 1725010, 1806721, 2581030, 3450020, 3613442, 4903957, 5162060, 7226884, 9033605, 9807914, 18067210, 19615828, 24519785, 34327699, 36134420, 49039570, 68655398, 98079140, 137310796, 171638495, 343276990, 686553980]

約数ペア:

[(1, 686553980), (2, 343276990), (4, 171638495), (5, 137310796), (7, 98079140), (10, 68655398), (14, 49039570), (19, 36134420), (20, 34327699), (28, 24519785), (35, 19615828), (38, 18067210), (70, 9807914), (76, 9033605), (95, 7226884), (133, 5162060), (140, 4903957), (190, 3613442), (199, 3450020), (266, 2581030), (380, 1806721), (398, 1725010), (532, 1290515), (665, 1032412), (796, 862505), (995, 690004), (1297, 529340), (1330, 516206), (1393, 492860), (1990, 345002), (2594, 264670), (2660, 258103), (2786, 246430), (3781, 181580), (3980, 172501), (5188, 132335), (5572, 123215), (6485, 105868), (6965, 98572), (7562, 90790), (9079, 75620), (12970, 52934), (13930, 49286), (15124, 45395), (18158, 37810), (18905, 36316), (24643, 27860), (25940, 26467)]