19439060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 42485520

約数和(自身を除く): 23046460

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 241, 370, 436, 482, 545, 740, 964, 1090, 1205, 2180, 2410, 4033, 4820, 8066, 8917, 16132, 17834, 20165, 26269, 35668, 40330, 44585, 52538, 80660, 89170, 105076, 131345, 178340, 262690, 525380, 971953, 1943906, 3887812, 4859765, 9719530, 19439060]

約数ペア:

[(1, 19439060), (2, 9719530), (4, 4859765), (5, 3887812), (10, 1943906), (20, 971953), (37, 525380), (74, 262690), (109, 178340), (148, 131345), (185, 105076), (218, 89170), (241, 80660), (370, 52538), (436, 44585), (482, 40330), (545, 35668), (740, 26269), (964, 20165), (1090, 17834), (1205, 16132), (2180, 8917), (2410, 8066), (4033, 4820)]