19117340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{769}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 25123780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 769, 1130, 1243, 1538, 2260, 2486, 3076, 3845, 4972, 6215, 7690, 8459, 12430, 15380, 16918, 24860, 33836, 42295, 84590, 86897, 169180, 173794, 347588, 434485, 868970, 955867, 1737940, 1911734, 3823468, 4779335, 9558670, 19117340]

約数ペア:

[(1, 19117340), (2, 9558670), (4, 4779335), (5, 3823468), (10, 1911734), (11, 1737940), (20, 955867), (22, 868970), (44, 434485), (55, 347588), (110, 173794), (113, 169180), (220, 86897), (226, 84590), (452, 42295), (565, 33836), (769, 24860), (1130, 16918), (1243, 15380), (1538, 12430), (2260, 8459), (2486, 7690), (3076, 6215), (3845, 4972)]