25974280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20947}}^1$

素因数の和:20989

約数の個数: 32

約数和(自身を含む): 60330240

約数和(自身を除く): 34355960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 20947, 41894, 83788, 104735, 167576, 209470, 418940, 649357, 837880, 1298714, 2597428, 3246785, 5194856, 6493570, 12987140, 25974280]

約数ペア:

[(1, 25974280), (2, 12987140), (4, 6493570), (5, 5194856), (8, 3246785), (10, 2597428), (20, 1298714), (31, 837880), (40, 649357), (62, 418940), (124, 209470), (155, 167576), (248, 104735), (310, 83788), (620, 41894), (1240, 20947)]