2019367720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{4007}}^1$

素因数の和:4354

約数の個数: 64

約数和(自身を含む): 4666273920

約数和(自身を除く): 2646906200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 293, 344, 430, 586, 860, 1172, 1465, 1720, 2344, 2930, 4007, 5860, 8014, 11720, 12599, 16028, 20035, 25198, 32056, 40070, 50396, 62995, 80140, 100792, 125990, 160280, 172301, 251980, 344602, 503960, 689204, 861505, 1174051, 1378408, 1723010, 2348102, 3446020, 4696204, 5870255, 6892040, 9392408, 11740510, 23481020, 46962040, 50484193, 100968386, 201936772, 252420965, 403873544, 504841930, 1009683860, 2019367720]

約数ペア:

[(1, 2019367720), (2, 1009683860), (4, 504841930), (5, 403873544), (8, 252420965), (10, 201936772), (20, 100968386), (40, 50484193), (43, 46962040), (86, 23481020), (172, 11740510), (215, 9392408), (293, 6892040), (344, 5870255), (430, 4696204), (586, 3446020), (860, 2348102), (1172, 1723010), (1465, 1378408), (1720, 1174051), (2344, 861505), (2930, 689204), (4007, 503960), (5860, 344602), (8014, 251980), (11720, 172301), (12599, 160280), (16028, 125990), (20035, 100792), (25198, 80140), (32056, 62995), (40070, 50396)]