19008860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{647}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 24427876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 647, 1130, 1294, 1469, 2260, 2588, 2938, 3235, 5876, 6470, 7345, 8411, 12940, 14690, 16822, 29380, 33644, 42055, 73111, 84110, 146222, 168220, 292444, 365555, 731110, 950443, 1462220, 1900886, 3801772, 4752215, 9504430, 19008860]

約数ペア:

[(1, 19008860), (2, 9504430), (4, 4752215), (5, 3801772), (10, 1900886), (13, 1462220), (20, 950443), (26, 731110), (52, 365555), (65, 292444), (113, 168220), (130, 146222), (226, 84110), (260, 73111), (452, 42055), (565, 33644), (647, 29380), (1130, 16822), (1294, 14690), (1469, 12940), (2260, 8411), (2588, 7345), (2938, 6470), (3235, 5876)]