661804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 36

約数和(自身を含む): 1383480

約数和(自身を除く): 721676

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 89, 143, 169, 178, 286, 338, 356, 572, 676, 979, 1157, 1859, 1958, 2314, 3718, 3916, 4628, 7436, 12727, 15041, 25454, 30082, 50908, 60164, 165451, 330902, 661804]

約数ペア:

[(1, 661804), (2, 330902), (4, 165451), (11, 60164), (13, 50908), (22, 30082), (26, 25454), (44, 15041), (52, 12727), (89, 7436), (143, 4628), (169, 3916), (178, 3718), (286, 2314), (338, 1958), (356, 1859), (572, 1157), (676, 979)]