81939030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{4261}}^1$

素因数の和:4912

約数の個数: 32

約数和(自身を含む): 197006688

約数和(自身を除く): 115067658

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 641, 1282, 1923, 3205, 3846, 4261, 6410, 8522, 9615, 12783, 19230, 21305, 25566, 42610, 63915, 127830, 2731301, 5462602, 8193903, 13656505, 16387806, 27313010, 40969515, 81939030]

約数ペア:

[(1, 81939030), (2, 40969515), (3, 27313010), (5, 16387806), (6, 13656505), (10, 8193903), (15, 5462602), (30, 2731301), (641, 127830), (1282, 63915), (1923, 42610), (3205, 25566), (3846, 21305), (4261, 19230), (6410, 12783), (8522, 9615)]