81339228

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 228147920

約数和(自身を除く): 146808692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 73, 76, 81, 108, 114, 146, 162, 171, 181, 219, 228, 292, 324, 342, 362, 438, 513, 543, 657, 684, 724, 876, 1026, 1086, 1314, 1387, 1539, 1629, 1971, 2052, 2172, 2628, 2774, 3078, 3258, 3439, 3942, 4161, 4887, 5548, 5913, 6156, 6516, 6878, 7884, 8322, 9774, 10317, 11826, 12483, 13213, 13756, 14661, 16644, 19548, 20634, 23652, 24966, 26426, 29322, 30951, 37449, 39639, 41268, 49932, 52852, 58644, 61902, 74898, 79278, 92853, 112347, 118917, 123804, 149796, 158556, 185706, 224694, 237834, 251047, 278559, 356751, 371412, 449388, 475668, 502094, 557118, 713502, 753141, 1004188, 1070253, 1114236, 1427004, 1506282, 2140506, 2259423, 3012564, 4281012, 4518846, 6778269, 9037692, 13556538, 20334807, 27113076, 40669614, 81339228]

約数ペア:

[(1, 81339228), (2, 40669614), (3, 27113076), (4, 20334807), (6, 13556538), (9, 9037692), (12, 6778269), (18, 4518846), (19, 4281012), (27, 3012564), (36, 2259423), (38, 2140506), (54, 1506282), (57, 1427004), (73, 1114236), (76, 1070253), (81, 1004188), (108, 753141), (114, 713502), (146, 557118), (162, 502094), (171, 475668), (181, 449388), (219, 371412), (228, 356751), (292, 278559), (324, 251047), (342, 237834), (362, 224694), (438, 185706), (513, 158556), (543, 149796), (657, 123804), (684, 118917), (724, 112347), (876, 92853), (1026, 79278), (1086, 74898), (1314, 61902), (1387, 58644), (1539, 52852), (1629, 49932), (1971, 41268), (2052, 39639), (2172, 37449), (2628, 30951), (2774, 29322), (3078, 26426), (3258, 24966), (3439, 23652), (3942, 20634), (4161, 19548), (4887, 16644), (5548, 14661), (5913, 13756), (6156, 13213), (6516, 12483), (6878, 11826), (7884, 10317), (8322, 9774)]