505700

素因数分解:

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

素因数の和:416

約数の個数: 36

約数和(自身を含む): 1184820

約数和(自身を除く): 679120

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 389, 650, 778, 1300, 1556, 1945, 3890, 5057, 7780, 9725, 10114, 19450, 20228, 25285, 38900, 50570, 101140, 126425, 252850, 505700]

約数ペア:

[(1, 505700), (2, 252850), (4, 126425), (5, 101140), (10, 50570), (13, 38900), (20, 25285), (25, 20228), (26, 19450), (50, 10114), (52, 9725), (65, 7780), (100, 5057), (130, 3890), (260, 1945), (325, 1556), (389, 1300), (650, 778)]