65640890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1229}}^1$

素因数の和:1359

約数の個数: 48

約数和(自身を含む): 138817800

約数和(自身を除く): 73176910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 109, 218, 245, 490, 545, 763, 1090, 1229, 1526, 2458, 3815, 5341, 6145, 7630, 8603, 10682, 12290, 17206, 26705, 43015, 53410, 60221, 86030, 120442, 133961, 267922, 301105, 602210, 669805, 937727, 1339610, 1875454, 4688635, 6564089, 9377270, 13128178, 32820445, 65640890]

約数ペア:

[(1, 65640890), (2, 32820445), (5, 13128178), (7, 9377270), (10, 6564089), (14, 4688635), (35, 1875454), (49, 1339610), (70, 937727), (98, 669805), (109, 602210), (218, 301105), (245, 267922), (490, 133961), (545, 120442), (763, 86030), (1090, 60221), (1229, 53410), (1526, 43015), (2458, 26705), (3815, 17206), (5341, 12290), (6145, 10682), (7630, 8603)]