17975425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 26248320

約数和(自身を除く): 8272895

約数列:

[1, 5, 13, 19, 25, 41, 65, 71, 95, 205, 247, 325, 355, 475, 533, 779, 923, 1025, 1235, 1349, 1775, 2665, 2911, 3895, 4615, 6175, 6745, 10127, 13325, 14555, 17537, 19475, 23075, 33725, 37843, 50635, 55309, 72775, 87685, 189215, 253175, 276545, 438425, 719017, 946075, 1382725, 3595085, 17975425]

約数ペア:

[(1, 17975425), (5, 3595085), (13, 1382725), (19, 946075), (25, 719017), (41, 438425), (65, 276545), (71, 253175), (95, 189215), (205, 87685), (247, 72775), (325, 55309), (355, 50635), (475, 37843), (533, 33725), (779, 23075), (923, 19475), (1025, 17537), (1235, 14555), (1349, 13325), (1775, 10127), (2665, 6745), (2911, 6175), (3895, 4615)]