178539788

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2142

約数の個数: 48

約数和(自身を含む): 372363264

約数和(自身を除く): 193823476

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 103, 124, 206, 217, 412, 434, 721, 868, 1442, 1997, 2884, 3193, 3994, 6386, 7988, 12772, 13979, 22351, 27958, 44702, 55916, 61907, 89404, 123814, 205691, 247628, 411382, 433349, 822764, 866698, 1439837, 1733396, 2879674, 5759348, 6376421, 12752842, 25505684, 44634947, 89269894, 178539788]

約数ペア:

[(1, 178539788), (2, 89269894), (4, 44634947), (7, 25505684), (14, 12752842), (28, 6376421), (31, 5759348), (62, 2879674), (103, 1733396), (124, 1439837), (206, 866698), (217, 822764), (412, 433349), (434, 411382), (721, 247628), (868, 205691), (1442, 123814), (1997, 89404), (2884, 61907), (3193, 55916), (3994, 44702), (6386, 27958), (7988, 22351), (12772, 13979)]