2021640595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 2866824576

約数和(自身を除く): 845183981

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 197, 221, 251, 481, 629, 985, 1105, 1255, 2405, 2561, 3145, 3263, 3349, 4267, 7289, 8177, 9287, 12805, 16315, 16745, 21335, 36445, 40885, 43537, 46435, 49447, 55471, 94757, 120731, 123913, 157879, 217685, 247235, 277355, 473785, 603655, 619565, 642811, 789395, 840599, 1610869, 1829539, 2052427, 3214055, 4202995, 8054345, 9147695, 10262135, 10927787, 23784007, 31102163, 54638935, 118920035, 155510815, 404328119, 2021640595]

約数ペア:

[(1, 2021640595), (5, 404328119), (13, 155510815), (17, 118920035), (37, 54638935), (65, 31102163), (85, 23784007), (185, 10927787), (197, 10262135), (221, 9147695), (251, 8054345), (481, 4202995), (629, 3214055), (985, 2052427), (1105, 1829539), (1255, 1610869), (2405, 840599), (2561, 789395), (3145, 642811), (3263, 619565), (3349, 603655), (4267, 473785), (7289, 277355), (8177, 247235), (9287, 217685), (12805, 157879), (16315, 123913), (16745, 120731), (21335, 94757), (36445, 55471), (40885, 49447), (43537, 46435)]