205606380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{489539}}^1$

素因数の和:489558

約数の個数: 48

約数和(自身を含む): 657941760

約数和(自身を除く): 452335380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 489539, 979078, 1468617, 1958156, 2447695, 2937234, 3426773, 4895390, 5874468, 6853546, 7343085, 9790780, 10280319, 13707092, 14686170, 17133865, 20560638, 29372340, 34267730, 41121276, 51401595, 68535460, 102803190, 205606380]

約数ペア:

[(1, 205606380), (2, 102803190), (3, 68535460), (4, 51401595), (5, 41121276), (6, 34267730), (7, 29372340), (10, 20560638), (12, 17133865), (14, 14686170), (15, 13707092), (20, 10280319), (21, 9790780), (28, 7343085), (30, 6853546), (35, 5874468), (42, 4895390), (60, 3426773), (70, 2937234), (84, 2447695), (105, 1958156), (140, 1468617), (210, 979078), (420, 489539)]