20165100255

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:539

約数の個数: 120

約数和(自身を含む): 37683825696

約数和(自身を除く): 17518725441

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 197, 263, 279, 405, 465, 591, 789, 837, 961, 985, 1315, 1395, 1773, 2367, 2511, 2883, 2955, 3945, 4185, 4805, 5319, 6107, 7101, 8153, 8649, 8865, 11835, 12555, 14415, 15957, 18321, 21303, 24459, 25947, 26595, 30535, 35505, 40765, 43245, 51811, 54963, 73377, 77841, 79785, 91605, 106515, 122295, 129735, 155433, 164889, 189317, 220131, 252743, 259055, 274815, 366885, 389205, 466299, 494667, 567951, 660393, 758229, 777165, 824445, 946585, 1100655, 1263715, 1398897, 1606141, 1703853, 2274687, 2331495, 2473335, 2839755, 3301965, 3791145, 4196691, 4818423, 5111559, 6824061, 6994485, 8030705, 8519265, 11373435, 14455269, 15334677, 20472183, 20983455, 24092115, 25557795, 34120305, 43365807, 49790371, 72276345, 76673385, 102360915, 130097421, 149371113, 216829035, 248951855, 448113339, 650487105, 746855565, 1344340017, 2240566695, 4033020051, 6721700085, 20165100255]

約数ペア:

[(1, 20165100255), (3, 6721700085), (5, 4033020051), (9, 2240566695), (15, 1344340017), (27, 746855565), (31, 650487105), (45, 448113339), (81, 248951855), (93, 216829035), (135, 149371113), (155, 130097421), (197, 102360915), (263, 76673385), (279, 72276345), (405, 49790371), (465, 43365807), (591, 34120305), (789, 25557795), (837, 24092115), (961, 20983455), (985, 20472183), (1315, 15334677), (1395, 14455269), (1773, 11373435), (2367, 8519265), (2511, 8030705), (2883, 6994485), (2955, 6824061), (3945, 5111559), (4185, 4818423), (4805, 4196691), (5319, 3791145), (6107, 3301965), (7101, 2839755), (8153, 2473335), (8649, 2331495), (8865, 2274687), (11835, 1703853), (12555, 1606141), (14415, 1398897), (15957, 1263715), (18321, 1100655), (21303, 946585), (24459, 824445), (25947, 777165), (26595, 758229), (30535, 660393), (35505, 567951), (40765, 494667), (43245, 466299), (51811, 389205), (54963, 366885), (73377, 274815), (77841, 259055), (79785, 252743), (91605, 220131), (106515, 189317), (122295, 164889), (129735, 155433)]