20512787720

素因数分解:

$2^3\times 5^1\times {\mathrm{4673}}^1\times {\mathrm{109741}}^1$

素因数の和:114425

約数の個数: 32

約数和(自身を含む): 46164069720

約数和(自身を除く): 25651282000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4673, 9346, 18692, 23365, 37384, 46730, 93460, 109741, 186920, 219482, 438964, 548705, 877928, 1097410, 2194820, 4389640, 512819693, 1025639386, 2051278772, 2564098465, 4102557544, 5128196930, 10256393860, 20512787720]

約数ペア:

[(1, 20512787720), (2, 10256393860), (4, 5128196930), (5, 4102557544), (8, 2564098465), (10, 2051278772), (20, 1025639386), (40, 512819693), (4673, 4389640), (9346, 2194820), (18692, 1097410), (23365, 877928), (37384, 548705), (46730, 438964), (93460, 219482), (109741, 186920)]