28074501

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 24210459

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 59, 63, 83, 91, 117, 147, 177, 249, 273, 413, 441, 531, 581, 637, 747, 767, 819, 1079, 1239, 1743, 1911, 2301, 2891, 3237, 3717, 4067, 4897, 5229, 5369, 5733, 6903, 7553, 8673, 9711, 12201, 14691, 16107, 22659, 26019, 34279, 36603, 37583, 44073, 48321, 52871, 63661, 67977, 102837, 112749, 158613, 190983, 239953, 308511, 338247, 445627, 475839, 572949, 719859, 1336881, 2159577, 3119389, 4010643, 9358167, 28074501]

約数ペア:

[(1, 28074501), (3, 9358167), (7, 4010643), (9, 3119389), (13, 2159577), (21, 1336881), (39, 719859), (49, 572949), (59, 475839), (63, 445627), (83, 338247), (91, 308511), (117, 239953), (147, 190983), (177, 158613), (249, 112749), (273, 102837), (413, 67977), (441, 63661), (531, 52871), (581, 48321), (637, 44073), (747, 37583), (767, 36603), (819, 34279), (1079, 26019), (1239, 22659), (1743, 16107), (1911, 14691), (2301, 12201), (2891, 9711), (3237, 8673), (3717, 7553), (4067, 6903), (4897, 5733), (5229, 5369)]