20161519420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1153}}^1\times {\mathrm{2549}}^1$

素因数の和:3732

約数の個数: 96

約数和(自身を含む): 49437360000

約数和(自身を除く): 29275840580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1153, 1372, 1715, 2306, 2549, 3430, 4612, 5098, 5765, 6860, 8071, 10196, 11530, 12745, 16142, 17843, 23060, 25490, 32284, 35686, 40355, 50980, 56497, 71372, 80710, 89215, 112994, 124901, 161420, 178430, 225988, 249802, 282485, 356860, 395479, 499604, 564970, 624505, 790958, 874307, 1129940, 1249010, 1581916, 1748614, 1977395, 2498020, 2938997, 3497228, 3954790, 4371535, 5877994, 7909580, 8743070, 11755988, 14694985, 17486140, 20572979, 29389970, 41145958, 58779940, 82291916, 102864895, 144010853, 205729790, 288021706, 411459580, 576043412, 720054265, 1008075971, 1440108530, 2016151942, 2880217060, 4032303884, 5040379855, 10080759710, 20161519420]

約数ペア:

[(1, 20161519420), (2, 10080759710), (4, 5040379855), (5, 4032303884), (7, 2880217060), (10, 2016151942), (14, 1440108530), (20, 1008075971), (28, 720054265), (35, 576043412), (49, 411459580), (70, 288021706), (98, 205729790), (140, 144010853), (196, 102864895), (245, 82291916), (343, 58779940), (490, 41145958), (686, 29389970), (980, 20572979), (1153, 17486140), (1372, 14694985), (1715, 11755988), (2306, 8743070), (2549, 7909580), (3430, 5877994), (4612, 4371535), (5098, 3954790), (5765, 3497228), (6860, 2938997), (8071, 2498020), (10196, 1977395), (11530, 1748614), (12745, 1581916), (16142, 1249010), (17843, 1129940), (23060, 874307), (25490, 790958), (32284, 624505), (35686, 564970), (40355, 499604), (50980, 395479), (56497, 356860), (71372, 282485), (80710, 249802), (89215, 225988), (112994, 178430), (124901, 161420)]