206563980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{491819}}^1$

素因数の和:491838

約数の個数: 48

約数和(自身を含む): 661006080

約数和(自身を除く): 454442100

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, 491819, 983638, 1475457, 1967276, 2459095, 2950914, 3442733, 4918190, 5901828, 6885466, 7377285, 9836380, 10328199, 13770932, 14754570, 17213665, 20656398, 29509140, 34427330, 41312796, 51640995, 68854660, 103281990, 206563980]

約数ペア:

[(1, 206563980), (2, 103281990), (3, 68854660), (4, 51640995), (5, 41312796), (6, 34427330), (7, 29509140), (10, 20656398), (12, 17213665), (14, 14754570), (15, 13770932), (20, 10328199), (21, 9836380), (28, 7377285), (30, 6885466), (35, 5901828), (42, 4918190), (60, 3442733), (70, 2950914), (84, 2459095), (105, 1967276), (140, 1475457), (210, 983638), (420, 491819)]