657410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:422

約数の個数: 24

約数和(自身を含む): 1284660

約数和(自身を除く): 627250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 389, 778, 845, 1690, 1945, 3890, 5057, 10114, 25285, 50570, 65741, 131482, 328705, 657410]

約数ペア:

[(1, 657410), (2, 328705), (5, 131482), (10, 65741), (13, 50570), (26, 25285), (65, 10114), (130, 5057), (169, 3890), (338, 1945), (389, 1690), (778, 845)]