20365856

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 28985824

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 59, 67, 92, 112, 118, 134, 161, 184, 224, 236, 268, 322, 368, 413, 469, 472, 536, 644, 736, 826, 938, 944, 1072, 1288, 1357, 1541, 1652, 1876, 1888, 2144, 2576, 2714, 3082, 3304, 3752, 3953, 5152, 5428, 6164, 6608, 7504, 7906, 9499, 10787, 10856, 12328, 13216, 15008, 15812, 18998, 21574, 21712, 24656, 27671, 31624, 37996, 43148, 43424, 49312, 55342, 63248, 75992, 86296, 90919, 110684, 126496, 151984, 172592, 181838, 221368, 303968, 345184, 363676, 442736, 636433, 727352, 885472, 1272866, 1454704, 2545732, 2909408, 5091464, 10182928, 20365856]

約数ペア:

[(1, 20365856), (2, 10182928), (4, 5091464), (7, 2909408), (8, 2545732), (14, 1454704), (16, 1272866), (23, 885472), (28, 727352), (32, 636433), (46, 442736), (56, 363676), (59, 345184), (67, 303968), (92, 221368), (112, 181838), (118, 172592), (134, 151984), (161, 126496), (184, 110684), (224, 90919), (236, 86296), (268, 75992), (322, 63248), (368, 55342), (413, 49312), (469, 43424), (472, 43148), (536, 37996), (644, 31624), (736, 27671), (826, 24656), (938, 21712), (944, 21574), (1072, 18998), (1288, 15812), (1357, 15008), (1541, 13216), (1652, 12328), (1876, 10856), (1888, 10787), (2144, 9499), (2576, 7906), (2714, 7504), (3082, 6608), (3304, 6164), (3752, 5428), (3953, 5152)]