18763940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72169}}^1$

素因数の和:72191

約数の個数: 24

約数和(自身を含む): 42435960

約数和(自身を除く): 23672020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72169, 144338, 288676, 360845, 721690, 938197, 1443380, 1876394, 3752788, 4690985, 9381970, 18763940]

約数ペア:

[(1, 18763940), (2, 9381970), (4, 4690985), (5, 3752788), (10, 1876394), (13, 1443380), (20, 938197), (26, 721690), (52, 360845), (65, 288676), (130, 144338), (260, 72169)]