228710020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{148513}}^1$

素因数の和:148540

約数の個数: 48

約数和(自身を含む): 598808448

約数和(自身を除く): 370098428

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 148513, 297026, 594052, 742565, 1039591, 1485130, 1633643, 2079182, 2970260, 3267286, 4158364, 5197955, 6534572, 8168215, 10395910, 11435501, 16336430, 20791820, 22871002, 32672860, 45742004, 57177505, 114355010, 228710020]

約数ペア:

[(1, 228710020), (2, 114355010), (4, 57177505), (5, 45742004), (7, 32672860), (10, 22871002), (11, 20791820), (14, 16336430), (20, 11435501), (22, 10395910), (28, 8168215), (35, 6534572), (44, 5197955), (55, 4158364), (70, 3267286), (77, 2970260), (110, 2079182), (140, 1633643), (154, 1485130), (220, 1039591), (308, 742565), (385, 594052), (770, 297026), (1540, 148513)]