64009040

素因数分解:

$2^4\times 5^1\times {\mathrm{800113}}^1$

素因数の和:800126

約数の個数: 20

約数和(自身を含む): 148821204

約数和(自身を除く): 84812164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800113, 1600226, 3200452, 4000565, 6400904, 8001130, 12801808, 16002260, 32004520, 64009040]

約数ペア:

[(1, 64009040), (2, 32004520), (4, 16002260), (5, 12801808), (8, 8001130), (10, 6400904), (16, 4000565), (20, 3200452), (40, 1600226), (80, 800113)]