1305535720

素因数分解:

$2^3\times 5^1\times {\mathrm{3221}}^1\times {\mathrm{10133}}^1$

素因数の和:13365

約数の個数: 32

約数和(自身を含む): 2938657320

約数和(自身を除く): 1633121600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3221, 6442, 10133, 12884, 16105, 20266, 25768, 32210, 40532, 50665, 64420, 81064, 101330, 128840, 202660, 405320, 32638393, 65276786, 130553572, 163191965, 261107144, 326383930, 652767860, 1305535720]

約数ペア:

[(1, 1305535720), (2, 652767860), (4, 326383930), (5, 261107144), (8, 163191965), (10, 130553572), (20, 65276786), (40, 32638393), (3221, 405320), (6442, 202660), (10133, 128840), (12884, 101330), (16105, 81064), (20266, 64420), (25768, 50665), (32210, 40532)]