221446240

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15551}}^1$

素因数の和:15655

約数の個数: 48

約数和(自身を含む): 529079040

約数和(自身を除く): 307632800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 15551, 31102, 62204, 77755, 124408, 155510, 248816, 311020, 497632, 622040, 1244080, 1384039, 2488160, 2768078, 5536156, 6920195, 11072312, 13840390, 22144624, 27680780, 44289248, 55361560, 110723120, 221446240]

約数ペア:

[(1, 221446240), (2, 110723120), (4, 55361560), (5, 44289248), (8, 27680780), (10, 22144624), (16, 13840390), (20, 11072312), (32, 6920195), (40, 5536156), (80, 2768078), (89, 2488160), (160, 1384039), (178, 1244080), (356, 622040), (445, 497632), (712, 311020), (890, 248816), (1424, 155510), (1780, 124408), (2848, 77755), (3560, 62204), (7120, 31102), (14240, 15551)]