207890240

素因数分解:

$2^6\times 5^1\times {\mathrm{649657}}^1$

素因数の和:649674

約数の個数: 28

約数和(自身を含む): 495039396

約数和(自身を除く): 287149156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 649657, 1299314, 2598628, 3248285, 5197256, 6496570, 10394512, 12993140, 20789024, 25986280, 41578048, 51972560, 103945120, 207890240]

約数ペア:

[(1, 207890240), (2, 103945120), (4, 51972560), (5, 41578048), (8, 25986280), (10, 20789024), (16, 12993140), (20, 10394512), (32, 6496570), (40, 5197256), (64, 3248285), (80, 2598628), (160, 1299314), (320, 649657)]