257231964

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{613}}^1$

素因数の和:676

約数の個数: 108

約数和(自身を含む): 701966552

約数和(自身を除く): 444734588

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 121, 132, 187, 204, 242, 289, 363, 374, 484, 561, 578, 613, 726, 748, 867, 1122, 1156, 1226, 1452, 1734, 1839, 2057, 2244, 2452, 3179, 3468, 3678, 4114, 6171, 6358, 6743, 7356, 8228, 9537, 10421, 12342, 12716, 13486, 19074, 20229, 20842, 24684, 26972, 31263, 34969, 38148, 40458, 41684, 62526, 69938, 74173, 80916, 104907, 114631, 125052, 139876, 148346, 177157, 209814, 222519, 229262, 296692, 343893, 354314, 419628, 445038, 458524, 531471, 687786, 708628, 890076, 1062942, 1260941, 1375572, 1948727, 2125884, 2521882, 3782823, 3897454, 5043764, 5846181, 7565646, 7794908, 11692362, 15131292, 21435997, 23384724, 42871994, 64307991, 85743988, 128615982, 257231964]

約数ペア:

[(1, 257231964), (2, 128615982), (3, 85743988), (4, 64307991), (6, 42871994), (11, 23384724), (12, 21435997), (17, 15131292), (22, 11692362), (33, 7794908), (34, 7565646), (44, 5846181), (51, 5043764), (66, 3897454), (68, 3782823), (102, 2521882), (121, 2125884), (132, 1948727), (187, 1375572), (204, 1260941), (242, 1062942), (289, 890076), (363, 708628), (374, 687786), (484, 531471), (561, 458524), (578, 445038), (613, 419628), (726, 354314), (748, 343893), (867, 296692), (1122, 229262), (1156, 222519), (1226, 209814), (1452, 177157), (1734, 148346), (1839, 139876), (2057, 125052), (2244, 114631), (2452, 104907), (3179, 80916), (3468, 74173), (3678, 69938), (4114, 62526), (6171, 41684), (6358, 40458), (6743, 38148), (7356, 34969), (8228, 31263), (9537, 26972), (10421, 24684), (12342, 20842), (12716, 20229), (13486, 19074)]