18105255

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:75

約数の個数: 128

約数和(自身を含む): 41472000

約数和(自身を除く): 23366745

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 23, 27, 35, 45, 49, 51, 63, 69, 85, 105, 115, 119, 135, 147, 153, 161, 189, 207, 245, 255, 315, 343, 345, 357, 391, 441, 459, 483, 595, 621, 735, 765, 805, 833, 945, 1029, 1035, 1071, 1127, 1173, 1323, 1449, 1715, 1785, 1955, 2205, 2295, 2415, 2499, 2737, 3087, 3105, 3213, 3381, 3519, 4165, 4347, 5145, 5355, 5635, 5831, 5865, 6615, 7245, 7497, 7889, 8211, 9261, 10143, 10557, 12495, 13685, 15435, 16065, 16905, 17493, 17595, 19159, 21735, 22491, 23667, 24633, 29155, 30429, 37485, 39445, 41055, 46305, 50715, 52479, 52785, 57477, 71001, 73899, 87465, 95795, 112455, 118335, 123165, 134113, 152145, 157437, 172431, 213003, 262395, 287385, 355005, 369495, 402339, 517293, 670565, 787185, 862155, 1065015, 1207017, 2011695, 2586465, 3621051, 6035085, 18105255]

約数ペア:

[(1, 18105255), (3, 6035085), (5, 3621051), (7, 2586465), (9, 2011695), (15, 1207017), (17, 1065015), (21, 862155), (23, 787185), (27, 670565), (35, 517293), (45, 402339), (49, 369495), (51, 355005), (63, 287385), (69, 262395), (85, 213003), (105, 172431), (115, 157437), (119, 152145), (135, 134113), (147, 123165), (153, 118335), (161, 112455), (189, 95795), (207, 87465), (245, 73899), (255, 71001), (315, 57477), (343, 52785), (345, 52479), (357, 50715), (391, 46305), (441, 41055), (459, 39445), (483, 37485), (595, 30429), (621, 29155), (735, 24633), (765, 23667), (805, 22491), (833, 21735), (945, 19159), (1029, 17595), (1035, 17493), (1071, 16905), (1127, 16065), (1173, 15435), (1323, 13685), (1449, 12495), (1715, 10557), (1785, 10143), (1955, 9261), (2205, 8211), (2295, 7889), (2415, 7497), (2499, 7245), (2737, 6615), (3087, 5865), (3105, 5831), (3213, 5635), (3381, 5355), (3519, 5145), (4165, 4347)]