20625435

素因数分解:

$3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 37357056

約数和(自身を除く): 16731621

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 381, 401, 405, 635, 1143, 1203, 1905, 2005, 3429, 3609, 5715, 6015, 10287, 10827, 17145, 18045, 32481, 50927, 51435, 54135, 152781, 162405, 254635, 458343, 763905, 1375029, 2291715, 4125087, 6875145, 20625435]

約数ペア:

[(1, 20625435), (3, 6875145), (5, 4125087), (9, 2291715), (15, 1375029), (27, 763905), (45, 458343), (81, 254635), (127, 162405), (135, 152781), (381, 54135), (401, 51435), (405, 50927), (635, 32481), (1143, 18045), (1203, 17145), (1905, 10827), (2005, 10287), (3429, 6015), (3609, 5715)]