81581175

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1033}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 163347184

約数和(自身を除く): 81766009

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 325, 351, 405, 585, 675, 975, 1033, 1053, 1215, 1755, 2025, 2925, 3099, 3159, 5165, 5265, 6075, 8775, 9297, 13429, 15495, 15795, 25825, 26325, 27891, 40287, 46485, 67145, 77475, 78975, 83673, 120861, 139455, 201435, 232425, 251019, 335725, 362583, 418365, 604305, 697275, 1007175, 1087749, 1255095, 1812915, 2091825, 3021525, 3263247, 5438745, 6275475, 9064575, 16316235, 27193725, 81581175]

約数ペア:

[(1, 81581175), (3, 27193725), (5, 16316235), (9, 9064575), (13, 6275475), (15, 5438745), (25, 3263247), (27, 3021525), (39, 2091825), (45, 1812915), (65, 1255095), (75, 1087749), (81, 1007175), (117, 697275), (135, 604305), (195, 418365), (225, 362583), (243, 335725), (325, 251019), (351, 232425), (405, 201435), (585, 139455), (675, 120861), (975, 83673), (1033, 78975), (1053, 77475), (1215, 67145), (1755, 46485), (2025, 40287), (2925, 27891), (3099, 26325), (3159, 25825), (5165, 15795), (5265, 15495), (6075, 13429), (8775, 9297)]