19437860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74761}}^1$

素因数の和:74783

約数の個数: 24

約数和(自身を含む): 43960056

約数和(自身を除く): 24522196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74761, 149522, 299044, 373805, 747610, 971893, 1495220, 1943786, 3887572, 4859465, 9718930, 19437860]

約数ペア:

[(1, 19437860), (2, 9718930), (4, 4859465), (5, 3887572), (10, 1943786), (13, 1495220), (20, 971893), (26, 747610), (52, 373805), (65, 299044), (130, 149522), (260, 74761)]