25260880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16619}}^1$

素因数の和:16651

約数の個数: 40

約数和(自身を含む): 61826400

約数和(自身を除く): 36565520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 16619, 33238, 66476, 83095, 132952, 166190, 265904, 315761, 332380, 631522, 664760, 1263044, 1329520, 1578805, 2526088, 3157610, 5052176, 6315220, 12630440, 25260880]

約数ペア:

[(1, 25260880), (2, 12630440), (4, 6315220), (5, 5052176), (8, 3157610), (10, 2526088), (16, 1578805), (19, 1329520), (20, 1263044), (38, 664760), (40, 631522), (76, 332380), (80, 315761), (95, 265904), (152, 166190), (190, 132952), (304, 83095), (380, 66476), (760, 33238), (1520, 16619)]