4989460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 12104064

約数和(自身を除く): 7114604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 227, 314, 454, 628, 785, 908, 1099, 1135, 1570, 1589, 2198, 2270, 3140, 3178, 4396, 4540, 5495, 6356, 7945, 10990, 15890, 21980, 31780, 35639, 71278, 142556, 178195, 249473, 356390, 498946, 712780, 997892, 1247365, 2494730, 4989460]

約数ペア:

[(1, 4989460), (2, 2494730), (4, 1247365), (5, 997892), (7, 712780), (10, 498946), (14, 356390), (20, 249473), (28, 178195), (35, 142556), (70, 71278), (140, 35639), (157, 31780), (227, 21980), (314, 15890), (454, 10990), (628, 7945), (785, 6356), (908, 5495), (1099, 4540), (1135, 4396), (1570, 3178), (1589, 3140), (2198, 2270)]