320180890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 634894848

約数和(自身を除く): 314713958

約数列:

[1, 2, 5, 10, 17, 34, 41, 71, 82, 85, 142, 170, 205, 355, 410, 647, 697, 710, 1207, 1294, 1394, 2414, 2911, 3235, 3485, 5822, 6035, 6470, 6970, 10999, 12070, 14555, 21998, 26527, 29110, 45937, 49487, 53054, 54995, 91874, 98974, 109990, 132635, 229685, 247435, 265270, 450959, 459370, 494870, 780929, 901918, 1561858, 1883417, 2254795, 3766834, 3904645, 4509590, 7809290, 9417085, 18834170, 32018089, 64036178, 160090445, 320180890]

約数ペア:

[(1, 320180890), (2, 160090445), (5, 64036178), (10, 32018089), (17, 18834170), (34, 9417085), (41, 7809290), (71, 4509590), (82, 3904645), (85, 3766834), (142, 2254795), (170, 1883417), (205, 1561858), (355, 901918), (410, 780929), (647, 494870), (697, 459370), (710, 450959), (1207, 265270), (1294, 247435), (1394, 229685), (2414, 132635), (2911, 109990), (3235, 98974), (3485, 91874), (5822, 54995), (6035, 53054), (6470, 49487), (6970, 45937), (10999, 29110), (12070, 26527), (14555, 21998)]