28210365

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 22857795

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 183, 215, 239, 305, 387, 549, 645, 717, 915, 1195, 1935, 2151, 2623, 2745, 3585, 7869, 10277, 10755, 13115, 14579, 23607, 30831, 39345, 43737, 51385, 72895, 92493, 118035, 131211, 154155, 218685, 462465, 626897, 656055, 1880691, 3134485, 5642073, 9403455, 28210365]

約数ペア:

[(1, 28210365), (3, 9403455), (5, 5642073), (9, 3134485), (15, 1880691), (43, 656055), (45, 626897), (61, 462465), (129, 218685), (183, 154155), (215, 131211), (239, 118035), (305, 92493), (387, 72895), (549, 51385), (645, 43737), (717, 39345), (915, 30831), (1195, 23607), (1935, 14579), (2151, 13115), (2623, 10755), (2745, 10277), (3585, 7869)]