306120440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{4139}}^1$

素因数の和:4236

約数の個数: 48

約数和(自身を含む): 705331800

約数和(自身を除く): 399211360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 3698, 4139, 7396, 8278, 9245, 14792, 16556, 18490, 20695, 33112, 36980, 41390, 73960, 82780, 165560, 177977, 355954, 711908, 889885, 1423816, 1779770, 3559540, 7119080, 7653011, 15306022, 30612044, 38265055, 61224088, 76530110, 153060220, 306120440]

約数ペア:

[(1, 306120440), (2, 153060220), (4, 76530110), (5, 61224088), (8, 38265055), (10, 30612044), (20, 15306022), (40, 7653011), (43, 7119080), (86, 3559540), (172, 1779770), (215, 1423816), (344, 889885), (430, 711908), (860, 355954), (1720, 177977), (1849, 165560), (3698, 82780), (4139, 73960), (7396, 41390), (8278, 36980), (9245, 33112), (14792, 20695), (16556, 18490)]