52117720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 121381920

約数和(自身を除く): 69264200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 157, 172, 193, 215, 314, 344, 386, 430, 628, 772, 785, 860, 965, 1256, 1544, 1570, 1720, 1930, 3140, 3860, 6280, 6751, 7720, 8299, 13502, 16598, 27004, 30301, 33196, 33755, 41495, 54008, 60602, 66392, 67510, 82990, 121204, 135020, 151505, 165980, 242408, 270040, 303010, 331960, 606020, 1212040, 1302943, 2605886, 5211772, 6514715, 10423544, 13029430, 26058860, 52117720]

約数ペア:

[(1, 52117720), (2, 26058860), (4, 13029430), (5, 10423544), (8, 6514715), (10, 5211772), (20, 2605886), (40, 1302943), (43, 1212040), (86, 606020), (157, 331960), (172, 303010), (193, 270040), (215, 242408), (314, 165980), (344, 151505), (386, 135020), (430, 121204), (628, 82990), (772, 67510), (785, 66392), (860, 60602), (965, 54008), (1256, 41495), (1544, 33755), (1570, 33196), (1720, 30301), (1930, 27004), (3140, 16598), (3860, 13502), (6280, 8299), (6751, 7720)]