212324420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137873}}^1$

素因数の和:137900

約数の個数: 48

約数和(自身を含む): 555907968

約数和(自身を除く): 343583548

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 137873, 275746, 551492, 689365, 965111, 1378730, 1516603, 1930222, 2757460, 3033206, 3860444, 4825555, 6066412, 7583015, 9651110, 10616221, 15166030, 19302220, 21232442, 30332060, 42464884, 53081105, 106162210, 212324420]

約数ペア:

[(1, 212324420), (2, 106162210), (4, 53081105), (5, 42464884), (7, 30332060), (10, 21232442), (11, 19302220), (14, 15166030), (20, 10616221), (22, 9651110), (28, 7583015), (35, 6066412), (44, 4825555), (55, 3860444), (70, 3033206), (77, 2757460), (110, 1930222), (140, 1516603), (154, 1378730), (220, 965111), (308, 689365), (385, 551492), (770, 275746), (1540, 137873)]