78981804

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 231154560

約数和(自身を除く): 152172756

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 83, 89, 99, 108, 132, 162, 166, 178, 198, 243, 249, 267, 297, 324, 332, 356, 396, 486, 498, 534, 594, 747, 801, 891, 913, 972, 979, 996, 1068, 1188, 1494, 1602, 1782, 1826, 1958, 2241, 2403, 2673, 2739, 2937, 2988, 3204, 3564, 3652, 3916, 4482, 4806, 5346, 5478, 5874, 6723, 7209, 7387, 8217, 8811, 8964, 9612, 10692, 10956, 11748, 13446, 14418, 14774, 16434, 17622, 20169, 21627, 22161, 24651, 26433, 26892, 28836, 29548, 32868, 35244, 40338, 43254, 44322, 49302, 52866, 66483, 73953, 79299, 80676, 81257, 86508, 88644, 98604, 105732, 132966, 147906, 158598, 162514, 199449, 221859, 237897, 243771, 265932, 295812, 317196, 325028, 398898, 443718, 475794, 487542, 598347, 731313, 797796, 887436, 951588, 975084, 1196694, 1462626, 1795041, 2193939, 2393388, 2925252, 3590082, 4387878, 6581817, 7180164, 8775756, 13163634, 19745451, 26327268, 39490902, 78981804]

約数ペア:

[(1, 78981804), (2, 39490902), (3, 26327268), (4, 19745451), (6, 13163634), (9, 8775756), (11, 7180164), (12, 6581817), (18, 4387878), (22, 3590082), (27, 2925252), (33, 2393388), (36, 2193939), (44, 1795041), (54, 1462626), (66, 1196694), (81, 975084), (83, 951588), (89, 887436), (99, 797796), (108, 731313), (132, 598347), (162, 487542), (166, 475794), (178, 443718), (198, 398898), (243, 325028), (249, 317196), (267, 295812), (297, 265932), (324, 243771), (332, 237897), (356, 221859), (396, 199449), (486, 162514), (498, 158598), (534, 147906), (594, 132966), (747, 105732), (801, 98604), (891, 88644), (913, 86508), (972, 81257), (979, 80676), (996, 79299), (1068, 73953), (1188, 66483), (1494, 52866), (1602, 49302), (1782, 44322), (1826, 43254), (1958, 40338), (2241, 35244), (2403, 32868), (2673, 29548), (2739, 28836), (2937, 26892), (2988, 26433), (3204, 24651), (3564, 22161), (3652, 21627), (3916, 20169), (4482, 17622), (4806, 16434), (5346, 14774), (5478, 14418), (5874, 13446), (6723, 11748), (7209, 10956), (7387, 10692), (8217, 9612), (8811, 8964)]