138794320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247847}}^1$

素因数の和:247867

約数の個数: 40

約数和(自身を含む): 368797824

約数和(自身を除く): 230003504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247847, 495694, 991388, 1239235, 1734929, 1982776, 2478470, 3469858, 3965552, 4956940, 6939716, 8674645, 9913880, 13879432, 17349290, 19827760, 27758864, 34698580, 69397160, 138794320]

約数ペア:

[(1, 138794320), (2, 69397160), (4, 34698580), (5, 27758864), (7, 19827760), (8, 17349290), (10, 13879432), (14, 9913880), (16, 8674645), (20, 6939716), (28, 4956940), (35, 3965552), (40, 3469858), (56, 2478470), (70, 1982776), (80, 1734929), (112, 1239235), (140, 991388), (280, 495694), (560, 247847)]