256708480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{57301}}^1$

素因数の和:57327

約数の個数: 64

約数和(自身を含む): 701376480

約数和(自身を除く): 444668000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 57301, 114602, 229204, 286505, 401107, 458408, 573010, 802214, 916816, 1146020, 1604428, 1833632, 2005535, 2292040, 3208856, 3667264, 4011070, 4584080, 6417712, 7334528, 8022140, 9168160, 12835424, 16044280, 18336320, 25670848, 32088560, 36672640, 51341696, 64177120, 128354240, 256708480]

約数ペア:

[(1, 256708480), (2, 128354240), (4, 64177120), (5, 51341696), (7, 36672640), (8, 32088560), (10, 25670848), (14, 18336320), (16, 16044280), (20, 12835424), (28, 9168160), (32, 8022140), (35, 7334528), (40, 6417712), (56, 4584080), (64, 4011070), (70, 3667264), (80, 3208856), (112, 2292040), (128, 2005535), (140, 1833632), (160, 1604428), (224, 1146020), (280, 916816), (320, 802214), (448, 573010), (560, 458408), (640, 401107), (896, 286505), (1120, 229204), (2240, 114602), (4480, 57301)]