81564630

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388403}}^1$

素因数の和:388420

約数の個数: 32

約数和(自身を含む): 223720704

約数和(自身を除く): 142156074

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388403, 776806, 1165209, 1942015, 2330418, 2718821, 3884030, 5437642, 5826045, 8156463, 11652090, 13594105, 16312926, 27188210, 40782315, 81564630]

約数ペア:

[(1, 81564630), (2, 40782315), (3, 27188210), (5, 16312926), (6, 13594105), (7, 11652090), (10, 8156463), (14, 5826045), (15, 5437642), (21, 3884030), (30, 2718821), (35, 2330418), (42, 1942015), (70, 1165209), (105, 776806), (210, 388403)]