77691880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{947}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 200672640

約数和(自身を除く): 122980760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 293, 586, 947, 1172, 1465, 1894, 2051, 2344, 2930, 3788, 4102, 4735, 5860, 6629, 7576, 8204, 9470, 10255, 11720, 13258, 16408, 18940, 20510, 26516, 33145, 37880, 41020, 53032, 66290, 82040, 132580, 265160, 277471, 554942, 1109884, 1387355, 1942297, 2219768, 2774710, 3884594, 5549420, 7769188, 9711485, 11098840, 15538376, 19422970, 38845940, 77691880]

約数ペア:

[(1, 77691880), (2, 38845940), (4, 19422970), (5, 15538376), (7, 11098840), (8, 9711485), (10, 7769188), (14, 5549420), (20, 3884594), (28, 2774710), (35, 2219768), (40, 1942297), (56, 1387355), (70, 1109884), (140, 554942), (280, 277471), (293, 265160), (586, 132580), (947, 82040), (1172, 66290), (1465, 53032), (1894, 41020), (2051, 37880), (2344, 33145), (2930, 26516), (3788, 20510), (4102, 18940), (4735, 16408), (5860, 13258), (6629, 11720), (7576, 10255), (8204, 9470)]