25005680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{6379}}^1$

素因数の和:6406

約数の個数: 60

約数和(自身を含む): 67640760

約数和(自身を除く): 42635080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 6379, 12758, 25516, 31895, 44653, 51032, 63790, 89306, 102064, 127580, 178612, 223265, 255160, 312571, 357224, 446530, 510320, 625142, 714448, 893060, 1250284, 1562855, 1786120, 2500568, 3125710, 3572240, 5001136, 6251420, 12502840, 25005680]

約数ペア:

[(1, 25005680), (2, 12502840), (4, 6251420), (5, 5001136), (7, 3572240), (8, 3125710), (10, 2500568), (14, 1786120), (16, 1562855), (20, 1250284), (28, 893060), (35, 714448), (40, 625142), (49, 510320), (56, 446530), (70, 357224), (80, 312571), (98, 255160), (112, 223265), (140, 178612), (196, 127580), (245, 102064), (280, 89306), (392, 63790), (490, 51032), (560, 44653), (784, 31895), (980, 25516), (1960, 12758), (3920, 6379)]