177121520

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4931}}^1$

素因数の和:5393

約数の個数: 40

約数和(自身を含む): 412808400

約数和(自身を除く): 235686880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1796, 2245, 3592, 4490, 4931, 7184, 8980, 9862, 17960, 19724, 24655, 35920, 39448, 49310, 78896, 98620, 197240, 394480, 2214019, 4428038, 8856076, 11070095, 17712152, 22140190, 35424304, 44280380, 88560760, 177121520]

約数ペア:

[(1, 177121520), (2, 88560760), (4, 44280380), (5, 35424304), (8, 22140190), (10, 17712152), (16, 11070095), (20, 8856076), (40, 4428038), (80, 2214019), (449, 394480), (898, 197240), (1796, 98620), (2245, 78896), (3592, 49310), (4490, 39448), (4931, 35920), (7184, 24655), (8980, 19724), (9862, 17960)]