2981780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 6667920

約数和(自身を除く): 3686140

約数列:

[1, 2, 4, 5, 10, 20, 29, 53, 58, 97, 106, 116, 145, 194, 212, 265, 290, 388, 485, 530, 580, 970, 1060, 1537, 1940, 2813, 3074, 5141, 5626, 6148, 7685, 10282, 11252, 14065, 15370, 20564, 25705, 28130, 30740, 51410, 56260, 102820, 149089, 298178, 596356, 745445, 1490890, 2981780]

約数ペア:

[(1, 2981780), (2, 1490890), (4, 745445), (5, 596356), (10, 298178), (20, 149089), (29, 102820), (53, 56260), (58, 51410), (97, 30740), (106, 28130), (116, 25705), (145, 20564), (194, 15370), (212, 14065), (265, 11252), (290, 10282), (388, 7685), (485, 6148), (530, 5626), (580, 5141), (970, 3074), (1060, 2813), (1537, 1940)]