199492720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{50891}}^1$

素因数の和:50918

約数の個数: 60

約数和(自身を含む): 539556984

約数和(自身を除く): 340064264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 50891, 101782, 203564, 254455, 356237, 407128, 508910, 712474, 814256, 1017820, 1424948, 1781185, 2035640, 2493659, 2849896, 3562370, 4071280, 4987318, 5699792, 7124740, 9974636, 12468295, 14249480, 19949272, 24936590, 28498960, 39898544, 49873180, 99746360, 199492720]

約数ペア:

[(1, 199492720), (2, 99746360), (4, 49873180), (5, 39898544), (7, 28498960), (8, 24936590), (10, 19949272), (14, 14249480), (16, 12468295), (20, 9974636), (28, 7124740), (35, 5699792), (40, 4987318), (49, 4071280), (56, 3562370), (70, 2849896), (80, 2493659), (98, 2035640), (112, 1781185), (140, 1424948), (196, 1017820), (245, 814256), (280, 712474), (392, 508910), (490, 407128), (560, 356237), (784, 254455), (980, 203564), (1960, 101782), (3920, 50891)]