20850830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2083}}^1$

素因数の和:2121

約数の個数: 64

約数和(自身を含む): 50416128

約数和(自身を除く): 29565298

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2083, 4166, 5005, 10010, 10415, 14581, 20830, 22913, 27079, 29162, 45826, 54158, 72905, 114565, 135395, 145810, 160391, 189553, 229130, 270790, 297869, 320782, 379106, 595738, 801955, 947765, 1489345, 1603910, 1895530, 2085083, 2978690, 4170166, 10425415, 20850830]

約数ペア:

[(1, 20850830), (2, 10425415), (5, 4170166), (7, 2978690), (10, 2085083), (11, 1895530), (13, 1603910), (14, 1489345), (22, 947765), (26, 801955), (35, 595738), (55, 379106), (65, 320782), (70, 297869), (77, 270790), (91, 229130), (110, 189553), (130, 160391), (143, 145810), (154, 135395), (182, 114565), (286, 72905), (385, 54158), (455, 45826), (715, 29162), (770, 27079), (910, 22913), (1001, 20830), (1430, 14581), (2002, 10415), (2083, 10010), (4166, 5005)]