19680700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15139}}^1$

素因数の和:15166

約数の個数: 36

約数和(自身を含む): 45995320

約数和(自身を除く): 26314620

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15139, 30278, 60556, 75695, 151390, 196807, 302780, 378475, 393614, 756950, 787228, 984035, 1513900, 1968070, 3936140, 4920175, 9840350, 19680700]

約数ペア:

[(1, 19680700), (2, 9840350), (4, 4920175), (5, 3936140), (10, 1968070), (13, 1513900), (20, 984035), (25, 787228), (26, 756950), (50, 393614), (52, 378475), (65, 302780), (100, 196807), (130, 151390), (260, 75695), (325, 60556), (650, 30278), (1300, 15139)]