78812060

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 170100000

約数和(自身を除く): 91287940

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 149, 212, 265, 298, 499, 530, 596, 745, 998, 1060, 1490, 1996, 2495, 2980, 4990, 7897, 9980, 15794, 26447, 31588, 39485, 52894, 74351, 78970, 105788, 132235, 148702, 157940, 264470, 297404, 371755, 528940, 743510, 1487020, 3940603, 7881206, 15762412, 19703015, 39406030, 78812060]

約数ペア:

[(1, 78812060), (2, 39406030), (4, 19703015), (5, 15762412), (10, 7881206), (20, 3940603), (53, 1487020), (106, 743510), (149, 528940), (212, 371755), (265, 297404), (298, 264470), (499, 157940), (530, 148702), (596, 132235), (745, 105788), (998, 78970), (1060, 74351), (1490, 52894), (1996, 39485), (2495, 31588), (2980, 26447), (4990, 15794), (7897, 9980)]