20616325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{271}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 27319680

約数和(自身を除く): 6703355

約数列:

[1, 5, 17, 25, 85, 179, 271, 425, 895, 1355, 3043, 4475, 4607, 6775, 15215, 23035, 48509, 76075, 115175, 242545, 824653, 1212725, 4123265, 20616325]

約数ペア:

[(1, 20616325), (5, 4123265), (17, 1212725), (25, 824653), (85, 242545), (179, 115175), (271, 76075), (425, 48509), (895, 23035), (1355, 15215), (3043, 6775), (4475, 4607)]