20123454276

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{1229}}^1\times {\mathrm{2897}}^1$

素因数の和:4293

約数の個数: 72

約数和(自身を含む): 51250956120

約数和(自身を除く): 31127501844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1229, 1413, 1884, 2458, 2826, 2897, 3687, 4916, 5652, 5794, 7374, 8691, 11061, 11588, 14748, 17382, 22122, 26073, 34764, 44244, 52146, 104292, 192953, 385906, 454829, 578859, 771812, 909658, 1157718, 1364487, 1736577, 1819316, 2315436, 2728974, 3473154, 3560413, 4093461, 5457948, 6946308, 7120826, 8186922, 10681239, 14241652, 16373844, 21362478, 32043717, 42724956, 64087434, 128174868, 558984841, 1117969682, 1676954523, 2235939364, 3353909046, 5030863569, 6707818092, 10061727138, 20123454276]

約数ペア:

[(1, 20123454276), (2, 10061727138), (3, 6707818092), (4, 5030863569), (6, 3353909046), (9, 2235939364), (12, 1676954523), (18, 1117969682), (36, 558984841), (157, 128174868), (314, 64087434), (471, 42724956), (628, 32043717), (942, 21362478), (1229, 16373844), (1413, 14241652), (1884, 10681239), (2458, 8186922), (2826, 7120826), (2897, 6946308), (3687, 5457948), (4916, 4093461), (5652, 3560413), (5794, 3473154), (7374, 2728974), (8691, 2315436), (11061, 1819316), (11588, 1736577), (14748, 1364487), (17382, 1157718), (22122, 909658), (26073, 771812), (34764, 578859), (44244, 454829), (52146, 385906), (104292, 192953)]