72688900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{17729}}^1$

素因数の和:17784

約数の個数: 36

約数和(自身を含む): 161591220

約数和(自身を除く): 88902320

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 17729, 35458, 70916, 88645, 177290, 354580, 443225, 726889, 886450, 1453778, 1772900, 2907556, 3634445, 7268890, 14537780, 18172225, 36344450, 72688900]

約数ペア:

[(1, 72688900), (2, 36344450), (4, 18172225), (5, 14537780), (10, 7268890), (20, 3634445), (25, 2907556), (41, 1772900), (50, 1453778), (82, 886450), (100, 726889), (164, 443225), (205, 354580), (410, 177290), (820, 88645), (1025, 70916), (2050, 35458), (4100, 17729)]