19449560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 47688480

約数和(自身を除く): 28238920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 113, 130, 226, 260, 331, 452, 520, 565, 662, 904, 1130, 1324, 1469, 1655, 2260, 2648, 2938, 3310, 4303, 4520, 5876, 6620, 7345, 8606, 11752, 13240, 14690, 17212, 21515, 29380, 34424, 37403, 43030, 58760, 74806, 86060, 149612, 172120, 187015, 299224, 374030, 486239, 748060, 972478, 1496120, 1944956, 2431195, 3889912, 4862390, 9724780, 19449560]

約数ペア:

[(1, 19449560), (2, 9724780), (4, 4862390), (5, 3889912), (8, 2431195), (10, 1944956), (13, 1496120), (20, 972478), (26, 748060), (40, 486239), (52, 374030), (65, 299224), (104, 187015), (113, 172120), (130, 149612), (226, 86060), (260, 74806), (331, 58760), (452, 43030), (520, 37403), (565, 34424), (662, 29380), (904, 21515), (1130, 17212), (1324, 14690), (1469, 13240), (1655, 11752), (2260, 8606), (2648, 7345), (2938, 6620), (3310, 5876), (4303, 4520)]