20778830

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:764

約数の個数: 32

約数和(自身を含む): 38905920

約数和(自身を除く): 18127090

約数列:

[1, 2, 5, 10, 37, 74, 89, 178, 185, 370, 445, 631, 890, 1262, 3155, 3293, 6310, 6586, 16465, 23347, 32930, 46694, 56159, 112318, 116735, 233470, 280795, 561590, 2077883, 4155766, 10389415, 20778830]

約数ペア:

[(1, 20778830), (2, 10389415), (5, 4155766), (10, 2077883), (37, 561590), (74, 280795), (89, 233470), (178, 116735), (185, 112318), (370, 56159), (445, 46694), (631, 32930), (890, 23347), (1262, 16465), (3155, 6586), (3293, 6310)]