225397840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31657}}^1$

素因数の和:31759

約数の個数: 40

約数和(自身を含む): 529954920

約数和(自身を除く): 304557080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 31657, 63314, 126628, 158285, 253256, 316570, 506512, 633140, 1266280, 2532560, 2817473, 5634946, 11269892, 14087365, 22539784, 28174730, 45079568, 56349460, 112698920, 225397840]

約数ペア:

[(1, 225397840), (2, 112698920), (4, 56349460), (5, 45079568), (8, 28174730), (10, 22539784), (16, 14087365), (20, 11269892), (40, 5634946), (80, 2817473), (89, 2532560), (178, 1266280), (356, 633140), (445, 506512), (712, 316570), (890, 253256), (1424, 158285), (1780, 126628), (3560, 63314), (7120, 31657)]