209201905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{2803}}^1$

素因数の和:2901

約数の個数: 32

約数和(自身を含む): 290718720

約数和(自身を除く): 81516815

約数列:

[1, 5, 11, 23, 55, 59, 115, 253, 295, 649, 1265, 1357, 2803, 3245, 6785, 14015, 14927, 30833, 64469, 74635, 154165, 165377, 322345, 709159, 826885, 1819147, 3545795, 3803671, 9095735, 19018355, 41840381, 209201905]

約数ペア:

[(1, 209201905), (5, 41840381), (11, 19018355), (23, 9095735), (55, 3803671), (59, 3545795), (115, 1819147), (253, 826885), (295, 709159), (649, 322345), (1265, 165377), (1357, 154165), (2803, 74635), (3245, 64469), (6785, 30833), (14015, 14927)]