202946120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{390281}}^1$

素因数の和:390305

約数の個数: 32

約数和(自身を含む): 491755320

約数和(自身を除く): 288809200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 390281, 780562, 1561124, 1951405, 3122248, 3902810, 5073653, 7805620, 10147306, 15611240, 20294612, 25368265, 40589224, 50736530, 101473060, 202946120]

約数ペア:

[(1, 202946120), (2, 101473060), (4, 50736530), (5, 40589224), (8, 25368265), (10, 20294612), (13, 15611240), (20, 10147306), (26, 7805620), (40, 5073653), (52, 3902810), (65, 3122248), (104, 1951405), (130, 1561124), (260, 780562), (520, 390281)]