20362888

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 47698560

約数和(自身を除く): 27335672

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 83, 91, 104, 166, 182, 332, 337, 364, 581, 664, 674, 728, 1079, 1162, 1348, 2158, 2324, 2359, 2696, 4316, 4381, 4648, 4718, 7553, 8632, 8762, 9436, 15106, 17524, 18872, 27971, 30212, 30667, 35048, 55942, 60424, 61334, 111884, 122668, 195797, 223768, 245336, 363623, 391594, 727246, 783188, 1454492, 1566376, 2545361, 2908984, 5090722, 10181444, 20362888]

約数ペア:

[(1, 20362888), (2, 10181444), (4, 5090722), (7, 2908984), (8, 2545361), (13, 1566376), (14, 1454492), (26, 783188), (28, 727246), (52, 391594), (56, 363623), (83, 245336), (91, 223768), (104, 195797), (166, 122668), (182, 111884), (332, 61334), (337, 60424), (364, 55942), (581, 35048), (664, 30667), (674, 30212), (728, 27971), (1079, 18872), (1162, 17524), (1348, 15106), (2158, 9436), (2324, 8762), (2359, 8632), (2696, 7553), (4316, 4718), (4381, 4648)]