25399985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 34237728

約数和(自身を除く): 8837743

約数列:

[1, 5, 13, 53, 65, 73, 101, 265, 365, 505, 689, 949, 1313, 3445, 3869, 4745, 5353, 6565, 7373, 19345, 26765, 36865, 50297, 69589, 95849, 251485, 347945, 390769, 479245, 1953845, 5079997, 25399985]

約数ペア:

[(1, 25399985), (5, 5079997), (13, 1953845), (53, 479245), (65, 390769), (73, 347945), (101, 251485), (265, 95849), (365, 69589), (505, 50297), (689, 36865), (949, 26765), (1313, 19345), (3445, 7373), (3869, 6565), (4745, 5353)]