19523075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 29331456

約数和(自身を除く): 9808381

約数列:

[1, 5, 11, 13, 25, 43, 55, 65, 127, 143, 215, 275, 325, 473, 559, 635, 715, 1075, 1397, 1651, 2365, 2795, 3175, 3575, 5461, 6149, 6985, 8255, 11825, 13975, 18161, 27305, 30745, 34925, 41275, 60071, 70993, 90805, 136525, 153725, 300355, 354965, 454025, 780923, 1501775, 1774825, 3904615, 19523075]

約数ペア:

[(1, 19523075), (5, 3904615), (11, 1774825), (13, 1501775), (25, 780923), (43, 454025), (55, 354965), (65, 300355), (127, 153725), (143, 136525), (215, 90805), (275, 70993), (325, 60071), (473, 41275), (559, 34925), (635, 30745), (715, 27305), (1075, 18161), (1397, 13975), (1651, 11825), (2365, 8255), (2795, 6985), (3175, 6149), (3575, 5461)]