40980560

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5281}}^1$

素因数の和:5391

約数の個数: 40

約数和(自身を含む): 96280296

約数和(自身を除く): 55299736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 5281, 7760, 10562, 21124, 26405, 42248, 52810, 84496, 105620, 211240, 422480, 512257, 1024514, 2049028, 2561285, 4098056, 5122570, 8196112, 10245140, 20490280, 40980560]

約数ペア:

[(1, 40980560), (2, 20490280), (4, 10245140), (5, 8196112), (8, 5122570), (10, 4098056), (16, 2561285), (20, 2049028), (40, 1024514), (80, 512257), (97, 422480), (194, 211240), (388, 105620), (485, 84496), (776, 52810), (970, 42248), (1552, 26405), (1940, 21124), (3880, 10562), (5281, 7760)]