315840640

素因数分解:

$2^7\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2557}}^1$

素因数の和:2769

約数の個数: 64

約数和(自身を含む): 759265560

約数和(自身を除く): 443424920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 320, 386, 640, 772, 965, 1544, 1930, 2557, 3088, 3860, 5114, 6176, 7720, 10228, 12352, 12785, 15440, 20456, 24704, 25570, 30880, 40912, 51140, 61760, 81824, 102280, 123520, 163648, 204560, 327296, 409120, 493501, 818240, 987002, 1636480, 1974004, 2467505, 3948008, 4935010, 7896016, 9870020, 15792032, 19740040, 31584064, 39480080, 63168128, 78960160, 157920320, 315840640]

約数ペア:

[(1, 315840640), (2, 157920320), (4, 78960160), (5, 63168128), (8, 39480080), (10, 31584064), (16, 19740040), (20, 15792032), (32, 9870020), (40, 7896016), (64, 4935010), (80, 3948008), (128, 2467505), (160, 1974004), (193, 1636480), (320, 987002), (386, 818240), (640, 493501), (772, 409120), (965, 327296), (1544, 204560), (1930, 163648), (2557, 123520), (3088, 102280), (3860, 81824), (5114, 61760), (6176, 51140), (7720, 40912), (10228, 30880), (12352, 25570), (12785, 24704), (15440, 20456)]