18418960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1112

約数の個数: 80

約数和(自身を含む): 50568192

約数和(自身を除く): 32149232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1061, 1085, 1240, 1736, 2122, 2170, 2480, 3472, 4244, 4340, 5305, 7427, 8488, 8680, 10610, 14854, 16976, 17360, 21220, 29708, 32891, 37135, 42440, 59416, 65782, 74270, 84880, 118832, 131564, 148540, 164455, 230237, 263128, 297080, 328910, 460474, 526256, 594160, 657820, 920948, 1151185, 1315640, 1841896, 2302370, 2631280, 3683792, 4604740, 9209480, 18418960]

約数ペア:

[(1, 18418960), (2, 9209480), (4, 4604740), (5, 3683792), (7, 2631280), (8, 2302370), (10, 1841896), (14, 1315640), (16, 1151185), (20, 920948), (28, 657820), (31, 594160), (35, 526256), (40, 460474), (56, 328910), (62, 297080), (70, 263128), (80, 230237), (112, 164455), (124, 148540), (140, 131564), (155, 118832), (217, 84880), (248, 74270), (280, 65782), (310, 59416), (434, 42440), (496, 37135), (560, 32891), (620, 29708), (868, 21220), (1061, 17360), (1085, 16976), (1240, 14854), (1736, 10610), (2122, 8680), (2170, 8488), (2480, 7427), (3472, 5305), (4244, 4340)]