1640706465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 2984924160

約数和(自身を除く): 1344217695

約数列:

[1, 3, 5, 15, 17, 29, 31, 51, 85, 87, 93, 145, 155, 255, 289, 421, 435, 465, 493, 527, 867, 899, 1263, 1445, 1479, 1581, 2105, 2465, 2635, 2697, 4335, 4495, 6315, 7157, 7395, 7905, 8381, 8959, 12209, 13051, 13485, 15283, 21471, 25143, 26877, 35785, 36627, 39153, 41905, 44795, 45849, 61045, 65255, 76415, 107355, 121669, 125715, 134385, 183135, 195765, 207553, 221867, 229245, 259811, 365007, 378479, 608345, 622659, 665601, 779433, 1037765, 1109335, 1135437, 1299055, 1825035, 1892395, 3113295, 3328005, 3528401, 3771739, 3897165, 5677185, 6434143, 10585203, 11315217, 17642005, 18858695, 19302429, 32170715, 52926015, 56576085, 96512145, 109380431, 328141293, 546902155, 1640706465]

約数ペア:

[(1, 1640706465), (3, 546902155), (5, 328141293), (15, 109380431), (17, 96512145), (29, 56576085), (31, 52926015), (51, 32170715), (85, 19302429), (87, 18858695), (93, 17642005), (145, 11315217), (155, 10585203), (255, 6434143), (289, 5677185), (421, 3897165), (435, 3771739), (465, 3528401), (493, 3328005), (527, 3113295), (867, 1892395), (899, 1825035), (1263, 1299055), (1445, 1135437), (1479, 1109335), (1581, 1037765), (2105, 779433), (2465, 665601), (2635, 622659), (2697, 608345), (4335, 378479), (4495, 365007), (6315, 259811), (7157, 229245), (7395, 221867), (7905, 207553), (8381, 195765), (8959, 183135), (12209, 134385), (13051, 125715), (13485, 121669), (15283, 107355), (21471, 76415), (25143, 65255), (26877, 61045), (35785, 45849), (36627, 44795), (39153, 41905)]