12502840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6379}}^1$

素因数の和:6404

約数の個数: 48

約数和(自身を含む): 32729400

約数和(自身を除く): 20226560

約数列:

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

約数ペア:

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