9879975

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:87

約数の個数: 120

約数和(自身を含む): 22686048

約数和(自身を除く): 12806073

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 35, 41, 45, 51, 63, 75, 81, 85, 105, 119, 123, 135, 153, 175, 189, 205, 225, 255, 287, 315, 357, 369, 405, 425, 459, 525, 567, 595, 615, 675, 697, 765, 861, 945, 1025, 1071, 1107, 1275, 1377, 1435, 1575, 1785, 1845, 2025, 2091, 2295, 2583, 2835, 2975, 3075, 3213, 3321, 3485, 3825, 4305, 4725, 4879, 5355, 5535, 6273, 6885, 7175, 7749, 8925, 9225, 9639, 10455, 11475, 12915, 14175, 14637, 16065, 16605, 17425, 18819, 21525, 23247, 24395, 26775, 27675, 31365, 34425, 38745, 43911, 48195, 52275, 56457, 64575, 73185, 80325, 83025, 94095, 116235, 121975, 131733, 156825, 193725, 219555, 240975, 282285, 365925, 395199, 470475, 581175, 658665, 1097775, 1411425, 1975995, 3293325, 9879975]

約数ペア:

[(1, 9879975), (3, 3293325), (5, 1975995), (7, 1411425), (9, 1097775), (15, 658665), (17, 581175), (21, 470475), (25, 395199), (27, 365925), (35, 282285), (41, 240975), (45, 219555), (51, 193725), (63, 156825), (75, 131733), (81, 121975), (85, 116235), (105, 94095), (119, 83025), (123, 80325), (135, 73185), (153, 64575), (175, 56457), (189, 52275), (205, 48195), (225, 43911), (255, 38745), (287, 34425), (315, 31365), (357, 27675), (369, 26775), (405, 24395), (425, 23247), (459, 21525), (525, 18819), (567, 17425), (595, 16605), (615, 16065), (675, 14637), (697, 14175), (765, 12915), (861, 11475), (945, 10455), (1025, 9639), (1071, 9225), (1107, 8925), (1275, 7749), (1377, 7175), (1435, 6885), (1575, 6273), (1785, 5535), (1845, 5355), (2025, 4879), (2091, 4725), (2295, 4305), (2583, 3825), (2835, 3485), (2975, 3321), (3075, 3213)]