64995520

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2011}}^1$

素因数の和:2129

約数の個数: 56

約数和(自身を含む): 156380688

約数和(自身を除く): 91385168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 1010, 1616, 2011, 2020, 3232, 4022, 4040, 6464, 8044, 8080, 10055, 16088, 16160, 20110, 32176, 32320, 40220, 64352, 80440, 128704, 160880, 203111, 321760, 406222, 643520, 812444, 1015555, 1624888, 2031110, 3249776, 4062220, 6499552, 8124440, 12999104, 16248880, 32497760, 64995520]

約数ペア:

[(1, 64995520), (2, 32497760), (4, 16248880), (5, 12999104), (8, 8124440), (10, 6499552), (16, 4062220), (20, 3249776), (32, 2031110), (40, 1624888), (64, 1015555), (80, 812444), (101, 643520), (160, 406222), (202, 321760), (320, 203111), (404, 160880), (505, 128704), (808, 80440), (1010, 64352), (1616, 40220), (2011, 32320), (2020, 32176), (3232, 20110), (4022, 16160), (4040, 16088), (6464, 10055), (8044, 8080)]