81226640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 207415296

約数和(自身を除く): 126188656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 241, 383, 440, 482, 766, 880, 964, 1205, 1532, 1915, 1928, 2410, 2651, 3064, 3830, 3856, 4213, 4820, 5302, 6128, 7660, 8426, 9640, 10604, 13255, 15320, 16852, 19280, 21065, 21208, 26510, 30640, 33704, 42130, 42416, 53020, 67408, 84260, 92303, 106040, 168520, 184606, 212080, 337040, 369212, 461515, 738424, 923030, 1015333, 1476848, 1846060, 2030666, 3692120, 4061332, 5076665, 7384240, 8122664, 10153330, 16245328, 20306660, 40613320, 81226640]

約数ペア:

[(1, 81226640), (2, 40613320), (4, 20306660), (5, 16245328), (8, 10153330), (10, 8122664), (11, 7384240), (16, 5076665), (20, 4061332), (22, 3692120), (40, 2030666), (44, 1846060), (55, 1476848), (80, 1015333), (88, 923030), (110, 738424), (176, 461515), (220, 369212), (241, 337040), (383, 212080), (440, 184606), (482, 168520), (766, 106040), (880, 92303), (964, 84260), (1205, 67408), (1532, 53020), (1915, 42416), (1928, 42130), (2410, 33704), (2651, 30640), (3064, 26510), (3830, 21208), (3856, 21065), (4213, 19280), (4820, 16852), (5302, 15320), (6128, 13255), (7660, 10604), (8426, 9640)]