19855940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76369}}^1$

素因数の和:76391

約数の個数: 24

約数和(自身を含む): 44905560

約数和(自身を除く): 25049620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76369, 152738, 305476, 381845, 763690, 992797, 1527380, 1985594, 3971188, 4963985, 9927970, 19855940]

約数ペア:

[(1, 19855940), (2, 9927970), (4, 4963985), (5, 3971188), (10, 1985594), (13, 1527380), (20, 992797), (26, 763690), (52, 381845), (65, 305476), (130, 152738), (260, 76369)]