491211020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{241}}^1\times {\mathrm{457}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 1042745088

約数和(自身を除く): 551534068

約数列:

[1, 2, 4, 5, 10, 20, 223, 241, 446, 457, 482, 892, 914, 964, 1115, 1205, 1828, 2230, 2285, 2410, 4460, 4570, 4820, 9140, 53743, 101911, 107486, 110137, 203822, 214972, 220274, 268715, 407644, 440548, 509555, 537430, 550685, 1019110, 1074860, 1101370, 2038220, 2202740, 24560551, 49121102, 98242204, 122802755, 245605510, 491211020]

約数ペア:

[(1, 491211020), (2, 245605510), (4, 122802755), (5, 98242204), (10, 49121102), (20, 24560551), (223, 2202740), (241, 2038220), (446, 1101370), (457, 1074860), (482, 1019110), (892, 550685), (914, 537430), (964, 509555), (1115, 440548), (1205, 407644), (1828, 268715), (2230, 220274), (2285, 214972), (2410, 203822), (4460, 110137), (4570, 107486), (4820, 101911), (9140, 53743)]