28501956

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 88058880

約数和(自身を除く): 59556924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 59, 63, 71, 81, 84, 108, 118, 126, 142, 162, 177, 189, 213, 236, 243, 252, 284, 324, 354, 378, 413, 426, 486, 497, 531, 567, 639, 708, 756, 826, 852, 972, 994, 1062, 1134, 1239, 1278, 1491, 1593, 1652, 1701, 1917, 1988, 2124, 2268, 2478, 2556, 2982, 3186, 3402, 3717, 3834, 4189, 4473, 4779, 4956, 5751, 5964, 6372, 6804, 7434, 7668, 8378, 8946, 9558, 11151, 11502, 12567, 13419, 14337, 14868, 16756, 17253, 17892, 19116, 22302, 23004, 25134, 26838, 28674, 29323, 33453, 34506, 37701, 40257, 44604, 50268, 53676, 57348, 58646, 66906, 69012, 75402, 80514, 87969, 100359, 113103, 117292, 120771, 133812, 150804, 161028, 175938, 200718, 226206, 241542, 263907, 339309, 351876, 401436, 452412, 483084, 527814, 678618, 791721, 1017927, 1055628, 1357236, 1583442, 2035854, 2375163, 3166884, 4071708, 4750326, 7125489, 9500652, 14250978, 28501956]

約数ペア:

[(1, 28501956), (2, 14250978), (3, 9500652), (4, 7125489), (6, 4750326), (7, 4071708), (9, 3166884), (12, 2375163), (14, 2035854), (18, 1583442), (21, 1357236), (27, 1055628), (28, 1017927), (36, 791721), (42, 678618), (54, 527814), (59, 483084), (63, 452412), (71, 401436), (81, 351876), (84, 339309), (108, 263907), (118, 241542), (126, 226206), (142, 200718), (162, 175938), (177, 161028), (189, 150804), (213, 133812), (236, 120771), (243, 117292), (252, 113103), (284, 100359), (324, 87969), (354, 80514), (378, 75402), (413, 69012), (426, 66906), (486, 58646), (497, 57348), (531, 53676), (567, 50268), (639, 44604), (708, 40257), (756, 37701), (826, 34506), (852, 33453), (972, 29323), (994, 28674), (1062, 26838), (1134, 25134), (1239, 23004), (1278, 22302), (1491, 19116), (1593, 17892), (1652, 17253), (1701, 16756), (1917, 14868), (1988, 14337), (2124, 13419), (2268, 12567), (2478, 11502), (2556, 11151), (2982, 9558), (3186, 8946), (3402, 8378), (3717, 7668), (3834, 7434), (4189, 6804), (4473, 6372), (4779, 5964), (4956, 5751)]