245245

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:50

約数の個数: 32

約数和(自身を含む): 403200

約数和(自身を除く): 157955

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 343, 385, 455, 539, 637, 715, 1001, 1715, 2695, 3185, 3773, 4459, 5005, 7007, 18865, 22295, 35035, 49049, 245245]

約数ペア:

[(1, 245245), (5, 49049), (7, 35035), (11, 22295), (13, 18865), (35, 7007), (49, 5005), (55, 4459), (65, 3773), (77, 3185), (91, 2695), (143, 1715), (245, 1001), (343, 715), (385, 637), (455, 539)]