19982340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15859}}^1$

素因数の和:15881

約数の個数: 72

約数和(自身を含む): 69276480

約数和(自身を除く): 49294140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15859, 31718, 47577, 63436, 79295, 95154, 111013, 142731, 158590, 190308, 222026, 237885, 285462, 317180, 333039, 444052, 475770, 555065, 570924, 666078, 713655, 951540, 999117, 1110130, 1332156, 1427310, 1665195, 1998234, 2220260, 2854620, 3330390, 3996468, 4995585, 6660780, 9991170, 19982340]

約数ペア:

[(1, 19982340), (2, 9991170), (3, 6660780), (4, 4995585), (5, 3996468), (6, 3330390), (7, 2854620), (9, 2220260), (10, 1998234), (12, 1665195), (14, 1427310), (15, 1332156), (18, 1110130), (20, 999117), (21, 951540), (28, 713655), (30, 666078), (35, 570924), (36, 555065), (42, 475770), (45, 444052), (60, 333039), (63, 317180), (70, 285462), (84, 237885), (90, 222026), (105, 190308), (126, 158590), (140, 142731), (180, 111013), (210, 95154), (252, 79295), (315, 63436), (420, 47577), (630, 31718), (1260, 15859)]