77221456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{371257}}^1$

素因数の和:371278

約数の個数: 20

約数和(自身を含む): 161125972

約数和(自身を除く): 83904516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 371257, 742514, 1485028, 2970056, 4826341, 5940112, 9652682, 19305364, 38610728, 77221456]

約数ペア:

[(1, 77221456), (2, 38610728), (4, 19305364), (8, 9652682), (13, 5940112), (16, 4826341), (26, 2970056), (52, 1485028), (104, 742514), (208, 371257)]