256763008

素因数分解:

$2^7\times {\mathrm{101}}^1\times {\mathrm{19861}}^1$

素因数の和:19976

約数の個数: 32

約数和(自身を含む): 516610620

約数和(自身を除く): 259847612

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 128, 202, 404, 808, 1616, 3232, 6464, 12928, 19861, 39722, 79444, 158888, 317776, 635552, 1271104, 2005961, 2542208, 4011922, 8023844, 16047688, 32095376, 64190752, 128381504, 256763008]

約数ペア:

[(1, 256763008), (2, 128381504), (4, 64190752), (8, 32095376), (16, 16047688), (32, 8023844), (64, 4011922), (101, 2542208), (128, 2005961), (202, 1271104), (404, 635552), (808, 317776), (1616, 158888), (3232, 79444), (6464, 39722), (12928, 19861)]