18946960

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^2\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 60

約数和(自身を含む): 45536148

約数和(自身を除く): 26589188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 173, 185, 296, 346, 370, 592, 692, 740, 865, 1369, 1384, 1480, 1730, 2738, 2768, 2960, 3460, 5476, 6401, 6845, 6920, 10952, 12802, 13690, 13840, 21904, 25604, 27380, 32005, 51208, 54760, 64010, 102416, 109520, 128020, 236837, 256040, 473674, 512080, 947348, 1184185, 1894696, 2368370, 3789392, 4736740, 9473480, 18946960]

約数ペア:

[(1, 18946960), (2, 9473480), (4, 4736740), (5, 3789392), (8, 2368370), (10, 1894696), (16, 1184185), (20, 947348), (37, 512080), (40, 473674), (74, 256040), (80, 236837), (148, 128020), (173, 109520), (185, 102416), (296, 64010), (346, 54760), (370, 51208), (592, 32005), (692, 27380), (740, 25604), (865, 21904), (1369, 13840), (1384, 13690), (1480, 12802), (1730, 10952), (2738, 6920), (2768, 6845), (2960, 6401), (3460, 5476)]