64393840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16427}}^1$

素因数の和:16454

約数の個数: 60

約数和(自身を含む): 174169656

約数和(自身を除く): 109775816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 16427, 32854, 65708, 82135, 114989, 131416, 164270, 229978, 262832, 328540, 459956, 574945, 657080, 804923, 919912, 1149890, 1314160, 1609846, 1839824, 2299780, 3219692, 4024615, 4599560, 6439384, 8049230, 9199120, 12878768, 16098460, 32196920, 64393840]

約数ペア:

[(1, 64393840), (2, 32196920), (4, 16098460), (5, 12878768), (7, 9199120), (8, 8049230), (10, 6439384), (14, 4599560), (16, 4024615), (20, 3219692), (28, 2299780), (35, 1839824), (40, 1609846), (49, 1314160), (56, 1149890), (70, 919912), (80, 804923), (98, 657080), (112, 574945), (140, 459956), (196, 328540), (245, 262832), (280, 229978), (392, 164270), (490, 131416), (560, 114989), (784, 82135), (980, 65708), (1960, 32854), (3920, 16427)]