2970440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 7508160

約数和(自身を除く): 4537720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 157, 172, 215, 220, 314, 344, 430, 440, 473, 628, 785, 860, 946, 1256, 1570, 1720, 1727, 1892, 2365, 3140, 3454, 3784, 4730, 6280, 6751, 6908, 8635, 9460, 13502, 13816, 17270, 18920, 27004, 33755, 34540, 54008, 67510, 69080, 74261, 135020, 148522, 270040, 297044, 371305, 594088, 742610, 1485220, 2970440]

約数ペア:

[(1, 2970440), (2, 1485220), (4, 742610), (5, 594088), (8, 371305), (10, 297044), (11, 270040), (20, 148522), (22, 135020), (40, 74261), (43, 69080), (44, 67510), (55, 54008), (86, 34540), (88, 33755), (110, 27004), (157, 18920), (172, 17270), (215, 13816), (220, 13502), (314, 9460), (344, 8635), (430, 6908), (440, 6751), (473, 6280), (628, 4730), (785, 3784), (860, 3454), (946, 3140), (1256, 2365), (1570, 1892), (1720, 1727)]