20306660

素因数分解:

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

素因数の和:644

約数の個数: 48

約数和(自身を含む): 46835712

約数和(自身を除く): 26529052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 383, 482, 766, 964, 1205, 1532, 1915, 2410, 2651, 3830, 4213, 4820, 5302, 7660, 8426, 10604, 13255, 16852, 21065, 26510, 42130, 53020, 84260, 92303, 184606, 369212, 461515, 923030, 1015333, 1846060, 2030666, 4061332, 5076665, 10153330, 20306660]

約数ペア:

[(1, 20306660), (2, 10153330), (4, 5076665), (5, 4061332), (10, 2030666), (11, 1846060), (20, 1015333), (22, 923030), (44, 461515), (55, 369212), (110, 184606), (220, 92303), (241, 84260), (383, 53020), (482, 42130), (766, 26510), (964, 21065), (1205, 16852), (1532, 13255), (1915, 10604), (2410, 8426), (2651, 7660), (3830, 5302), (4213, 4820)]