18020655

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 32672640

約数和(自身を除く): 14651985

約数列:

[1, 3, 5, 9, 15, 43, 45, 67, 129, 139, 201, 215, 335, 387, 417, 603, 645, 695, 1005, 1251, 1935, 2085, 2881, 3015, 5977, 6255, 8643, 9313, 14405, 17931, 25929, 27939, 29885, 43215, 46565, 53793, 83817, 89655, 129645, 139695, 268965, 400459, 419085, 1201377, 2002295, 3604131, 6006885, 18020655]

約数ペア:

[(1, 18020655), (3, 6006885), (5, 3604131), (9, 2002295), (15, 1201377), (43, 419085), (45, 400459), (67, 268965), (129, 139695), (139, 129645), (201, 89655), (215, 83817), (335, 53793), (387, 46565), (417, 43215), (603, 29885), (645, 27939), (695, 25929), (1005, 17931), (1251, 14405), (1935, 9313), (2085, 8643), (2881, 6255), (3015, 5977)]