28081795

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 40347648

約数和(自身を除く): 12265853

約数列:

[1, 5, 7, 35, 43, 47, 215, 235, 301, 329, 397, 1505, 1645, 1985, 2021, 2779, 10105, 13895, 14147, 17071, 18659, 70735, 85355, 93295, 119497, 130613, 597485, 653065, 802337, 4011685, 5616359, 28081795]

約数ペア:

[(1, 28081795), (5, 5616359), (7, 4011685), (35, 802337), (43, 653065), (47, 597485), (215, 130613), (235, 119497), (301, 93295), (329, 85355), (397, 70735), (1505, 18659), (1645, 17071), (1985, 14147), (2021, 13895), (2779, 10105)]