80971740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4127}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 247927680

約数和(自身を除く): 166955940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4127, 4905, 6540, 8254, 9810, 12381, 16508, 19620, 20635, 24762, 37143, 41270, 49524, 61905, 74286, 82540, 123810, 148572, 185715, 247620, 371430, 449843, 742860, 899686, 1349529, 1799372, 2249215, 2699058, 4048587, 4498430, 5398116, 6747645, 8097174, 8996860, 13495290, 16194348, 20242935, 26990580, 40485870, 80971740]

約数ペア:

[(1, 80971740), (2, 40485870), (3, 26990580), (4, 20242935), (5, 16194348), (6, 13495290), (9, 8996860), (10, 8097174), (12, 6747645), (15, 5398116), (18, 4498430), (20, 4048587), (30, 2699058), (36, 2249215), (45, 1799372), (60, 1349529), (90, 899686), (109, 742860), (180, 449843), (218, 371430), (327, 247620), (436, 185715), (545, 148572), (654, 123810), (981, 82540), (1090, 74286), (1308, 61905), (1635, 49524), (1962, 41270), (2180, 37143), (3270, 24762), (3924, 20635), (4127, 19620), (4905, 16508), (6540, 12381), (8254, 9810)]