64270460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{36107}}^1$

素因数の和:36205

約数の個数: 24

約数和(自身を含む): 136488240

約数和(自身を除く): 72217780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 36107, 72214, 144428, 180535, 361070, 722140, 3213523, 6427046, 12854092, 16067615, 32135230, 64270460]

約数ペア:

[(1, 64270460), (2, 32135230), (4, 16067615), (5, 12854092), (10, 6427046), (20, 3213523), (89, 722140), (178, 361070), (356, 180535), (445, 144428), (890, 72214), (1780, 36107)]