20123694808

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3457}}^1\times {\mathrm{5471}}^1$

素因数の和:8960

約数の個数: 64

約数和(自身を含む): 45413222400

約数和(自身を除く): 25289527592

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 3457, 5471, 6914, 10942, 13828, 21884, 24199, 27656, 38297, 43768, 48398, 65683, 76594, 96796, 103949, 131366, 153188, 193592, 207898, 262732, 306376, 415796, 459781, 525464, 727643, 831592, 919562, 1455286, 1839124, 2910572, 3678248, 5821144, 18913247, 37826494, 75652988, 132392729, 151305976, 264785458, 359351693, 529570916, 718703386, 1059141832, 1437406772, 2515461851, 2874813544, 5030923702, 10061847404, 20123694808]

約数ペア:

[(1, 20123694808), (2, 10061847404), (4, 5030923702), (7, 2874813544), (8, 2515461851), (14, 1437406772), (19, 1059141832), (28, 718703386), (38, 529570916), (56, 359351693), (76, 264785458), (133, 151305976), (152, 132392729), (266, 75652988), (532, 37826494), (1064, 18913247), (3457, 5821144), (5471, 3678248), (6914, 2910572), (10942, 1839124), (13828, 1455286), (21884, 919562), (24199, 831592), (27656, 727643), (38297, 525464), (43768, 459781), (48398, 415796), (65683, 306376), (76594, 262732), (96796, 207898), (103949, 193592), (131366, 153188)]