890200910

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1\times {\mathrm{2153}}^1$

素因数の和:2572

約数の個数: 32

約数和(自身を含む): 1619118720

約数和(自身を除く): 728917810

約数列:

[1, 2, 5, 10, 173, 239, 346, 478, 865, 1195, 1730, 2153, 2390, 4306, 10765, 21530, 41347, 82694, 206735, 372469, 413470, 514567, 744938, 1029134, 1862345, 2572835, 3724690, 5145670, 89020091, 178040182, 445100455, 890200910]

約数ペア:

[(1, 890200910), (2, 445100455), (5, 178040182), (10, 89020091), (173, 5145670), (239, 3724690), (346, 2572835), (478, 1862345), (865, 1029134), (1195, 744938), (1730, 514567), (2153, 413470), (2390, 372469), (4306, 206735), (10765, 82694), (21530, 41347)]