247845980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{7789}}^1$

素因数の和:7878

約数の個数: 48

約数和(自身を含む): 547044960

約数和(自身を除く): 299198980

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 740, 860, 1591, 3182, 6364, 7789, 7955, 15578, 15910, 31156, 31820, 38945, 77890, 155780, 288193, 334927, 576386, 669854, 1152772, 1339708, 1440965, 1674635, 2881930, 3349270, 5763860, 6698540, 12392299, 24784598, 49569196, 61961495, 123922990, 247845980]

約数ペア:

[(1, 247845980), (2, 123922990), (4, 61961495), (5, 49569196), (10, 24784598), (20, 12392299), (37, 6698540), (43, 5763860), (74, 3349270), (86, 2881930), (148, 1674635), (172, 1440965), (185, 1339708), (215, 1152772), (370, 669854), (430, 576386), (740, 334927), (860, 288193), (1591, 155780), (3182, 77890), (6364, 38945), (7789, 31820), (7955, 31156), (15578, 15910)]