85812020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 213373440

約数和(自身を除く): 127561420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 89, 97, 140, 142, 178, 194, 284, 355, 356, 388, 445, 485, 497, 623, 679, 710, 890, 970, 994, 1246, 1358, 1420, 1780, 1940, 1988, 2485, 2492, 2716, 3115, 3395, 4970, 6230, 6319, 6790, 6887, 8633, 9940, 12460, 12638, 13580, 13774, 17266, 25276, 27548, 31595, 34435, 34532, 43165, 44233, 48209, 60431, 63190, 68870, 86330, 88466, 96418, 120862, 126380, 137740, 172660, 176932, 192836, 221165, 241045, 241724, 302155, 442330, 482090, 604310, 612943, 884660, 964180, 1208620, 1225886, 2451772, 3064715, 4290601, 6129430, 8581202, 12258860, 17162404, 21453005, 42906010, 85812020]

約数ペア:

[(1, 85812020), (2, 42906010), (4, 21453005), (5, 17162404), (7, 12258860), (10, 8581202), (14, 6129430), (20, 4290601), (28, 3064715), (35, 2451772), (70, 1225886), (71, 1208620), (89, 964180), (97, 884660), (140, 612943), (142, 604310), (178, 482090), (194, 442330), (284, 302155), (355, 241724), (356, 241045), (388, 221165), (445, 192836), (485, 176932), (497, 172660), (623, 137740), (679, 126380), (710, 120862), (890, 96418), (970, 88466), (994, 86330), (1246, 68870), (1358, 63190), (1420, 60431), (1780, 48209), (1940, 44233), (1988, 43165), (2485, 34532), (2492, 34435), (2716, 31595), (3115, 27548), (3395, 25276), (4970, 17266), (6230, 13774), (6319, 13580), (6790, 12638), (6887, 12460), (8633, 9940)]