388601900

素因数分解:

$2^2\times 5^2\times {\mathrm{661}}^1\times {\mathrm{5879}}^1$

素因数の和:6554

約数の個数: 36

約数和(自身を含む): 844685520

約数和(自身を除く): 456083620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 661, 1322, 2644, 3305, 5879, 6610, 11758, 13220, 16525, 23516, 29395, 33050, 58790, 66100, 117580, 146975, 293950, 587900, 3886019, 7772038, 15544076, 19430095, 38860190, 77720380, 97150475, 194300950, 388601900]

約数ペア:

[(1, 388601900), (2, 194300950), (4, 97150475), (5, 77720380), (10, 38860190), (20, 19430095), (25, 15544076), (50, 7772038), (100, 3886019), (661, 587900), (1322, 293950), (2644, 146975), (3305, 117580), (5879, 66100), (6610, 58790), (11758, 33050), (13220, 29395), (16525, 23516)]