8210020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{347}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 21397824

約数和(自身を除く): 13187804

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 347, 364, 455, 676, 694, 845, 910, 1183, 1388, 1690, 1735, 1820, 2366, 2429, 3380, 3470, 4511, 4732, 4858, 5915, 6940, 9022, 9716, 11830, 12145, 18044, 22555, 23660, 24290, 31577, 45110, 48580, 58643, 63154, 90220, 117286, 126308, 157885, 234572, 293215, 315770, 410501, 586430, 631540, 821002, 1172860, 1642004, 2052505, 4105010, 8210020]

約数ペア:

[(1, 8210020), (2, 4105010), (4, 2052505), (5, 1642004), (7, 1172860), (10, 821002), (13, 631540), (14, 586430), (20, 410501), (26, 315770), (28, 293215), (35, 234572), (52, 157885), (65, 126308), (70, 117286), (91, 90220), (130, 63154), (140, 58643), (169, 48580), (182, 45110), (260, 31577), (338, 24290), (347, 23660), (364, 22555), (455, 18044), (676, 12145), (694, 11830), (845, 9716), (910, 9022), (1183, 6940), (1388, 5915), (1690, 4858), (1735, 4732), (1820, 4511), (2366, 3470), (2429, 3380)]