18120340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{373}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 43731072

約数和(自身を除く): 25610732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 347, 373, 694, 746, 1388, 1492, 1735, 1865, 2429, 2611, 3470, 3730, 4858, 5222, 6940, 7460, 9716, 10444, 12145, 13055, 24290, 26110, 48580, 52220, 129431, 258862, 517724, 647155, 906017, 1294310, 1812034, 2588620, 3624068, 4530085, 9060170, 18120340]

約数ペア:

[(1, 18120340), (2, 9060170), (4, 4530085), (5, 3624068), (7, 2588620), (10, 1812034), (14, 1294310), (20, 906017), (28, 647155), (35, 517724), (70, 258862), (140, 129431), (347, 52220), (373, 48580), (694, 26110), (746, 24290), (1388, 13055), (1492, 12145), (1735, 10444), (1865, 9716), (2429, 7460), (2611, 6940), (3470, 5222), (3730, 4858)]