12974420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 28440720

約数和(自身を除く): 15466300

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 197, 356, 370, 394, 445, 740, 788, 890, 985, 1780, 1970, 3293, 3940, 6586, 7289, 13172, 14578, 16465, 17533, 29156, 32930, 35066, 36445, 65860, 70132, 72890, 87665, 145780, 175330, 350660, 648721, 1297442, 2594884, 3243605, 6487210, 12974420]

約数ペア:

[(1, 12974420), (2, 6487210), (4, 3243605), (5, 2594884), (10, 1297442), (20, 648721), (37, 350660), (74, 175330), (89, 145780), (148, 87665), (178, 72890), (185, 70132), (197, 65860), (356, 36445), (370, 35066), (394, 32930), (445, 29156), (740, 17533), (788, 16465), (890, 14578), (985, 13172), (1780, 7289), (1970, 6586), (3293, 3940)]