129336580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{72661}}^1$

素因数の和:72759

約数の個数: 24

約数和(自身を含む): 274662360

約数和(自身を除く): 145325780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 72661, 145322, 290644, 363305, 726610, 1453220, 6466829, 12933658, 25867316, 32334145, 64668290, 129336580]

約数ペア:

[(1, 129336580), (2, 64668290), (4, 32334145), (5, 25867316), (10, 12933658), (20, 6466829), (89, 1453220), (178, 726610), (356, 363305), (445, 290644), (890, 145322), (1780, 72661)]