245401280

素因数分解:

$2^6\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1601}}^1$

素因数の和:2097

約数の個数: 56

約数和(自身を含む): 585947520

約数和(自身を除く): 340546240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 479, 958, 1601, 1916, 2395, 3202, 3832, 4790, 6404, 7664, 8005, 9580, 12808, 15328, 16010, 19160, 25616, 30656, 32020, 38320, 51232, 64040, 76640, 102464, 128080, 153280, 256160, 512320, 766879, 1533758, 3067516, 3834395, 6135032, 7668790, 12270064, 15337580, 24540128, 30675160, 49080256, 61350320, 122700640, 245401280]

約数ペア:

[(1, 245401280), (2, 122700640), (4, 61350320), (5, 49080256), (8, 30675160), (10, 24540128), (16, 15337580), (20, 12270064), (32, 7668790), (40, 6135032), (64, 3834395), (80, 3067516), (160, 1533758), (320, 766879), (479, 512320), (958, 256160), (1601, 153280), (1916, 128080), (2395, 102464), (3202, 76640), (3832, 64040), (4790, 51232), (6404, 38320), (7664, 32020), (8005, 30656), (9580, 25616), (12808, 19160), (15328, 16010)]