268222720

素因数分解:

$2^8\times 5^1\times {\mathrm{209549}}^1$

素因数の和:209570

約数の個数: 36

約数和(自身を含む): 642480300

約数和(自身を除く): 374257580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 209549, 419098, 838196, 1047745, 1676392, 2095490, 3352784, 4190980, 6705568, 8381960, 13411136, 16763920, 26822272, 33527840, 53644544, 67055680, 134111360, 268222720]

約数ペア:

[(1, 268222720), (2, 134111360), (4, 67055680), (5, 53644544), (8, 33527840), (10, 26822272), (16, 16763920), (20, 13411136), (32, 8381960), (40, 6705568), (64, 4190980), (80, 3352784), (128, 2095490), (160, 1676392), (256, 1047745), (320, 838196), (640, 419098), (1280, 209549)]