1215205020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{12479}}^1$

素因数の和:13035

約数の個数: 72

約数和(自身を含む): 3693231360

約数和(自身を除く): 2478026340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 541, 1082, 1623, 2164, 2705, 3246, 4869, 5410, 6492, 8115, 9738, 10820, 12479, 16230, 19476, 24345, 24958, 32460, 37437, 48690, 49916, 62395, 74874, 97380, 112311, 124790, 149748, 187185, 224622, 249580, 374370, 449244, 561555, 748740, 1123110, 2246220, 6751139, 13502278, 20253417, 27004556, 33755695, 40506834, 60760251, 67511390, 81013668, 101267085, 121520502, 135022780, 202534170, 243041004, 303801255, 405068340, 607602510, 1215205020]

約数ペア:

[(1, 1215205020), (2, 607602510), (3, 405068340), (4, 303801255), (5, 243041004), (6, 202534170), (9, 135022780), (10, 121520502), (12, 101267085), (15, 81013668), (18, 67511390), (20, 60760251), (30, 40506834), (36, 33755695), (45, 27004556), (60, 20253417), (90, 13502278), (180, 6751139), (541, 2246220), (1082, 1123110), (1623, 748740), (2164, 561555), (2705, 449244), (3246, 374370), (4869, 249580), (5410, 224622), (6492, 187185), (8115, 149748), (9738, 124790), (10820, 112311), (12479, 97380), (16230, 74874), (19476, 62395), (24345, 49916), (24958, 48690), (32460, 37437)]