20991597344

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{359}}^1\times {\mathrm{25031}}^1$

素因数の和:25473

約数の個数: 48

約数和(自身を含む): 42011706240

約数和(自身を除く): 21020108896

約数列:

[1, 2, 4, 8, 16, 32, 73, 146, 292, 359, 584, 718, 1168, 1436, 2336, 2872, 5744, 11488, 25031, 26207, 50062, 52414, 100124, 104828, 200248, 209656, 400496, 419312, 800992, 838624, 1827263, 3654526, 7309052, 8986129, 14618104, 17972258, 29236208, 35944516, 58472416, 71889032, 143778064, 287556128, 655987417, 1311974834, 2623949668, 5247899336, 10495798672, 20991597344]

約数ペア:

[(1, 20991597344), (2, 10495798672), (4, 5247899336), (8, 2623949668), (16, 1311974834), (32, 655987417), (73, 287556128), (146, 143778064), (292, 71889032), (359, 58472416), (584, 35944516), (718, 29236208), (1168, 17972258), (1436, 14618104), (2336, 8986129), (2872, 7309052), (5744, 3654526), (11488, 1827263), (25031, 838624), (26207, 800992), (50062, 419312), (52414, 400496), (100124, 209656), (104828, 200248)]