81997230

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{390463}}^1$

素因数の和:390480

約数の個数: 32

約数和(自身を含む): 224907264

約数和(自身を除く): 142910034

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 390463, 780926, 1171389, 1952315, 2342778, 2733241, 3904630, 5466482, 5856945, 8199723, 11713890, 13666205, 16399446, 27332410, 40998615, 81997230]

約数ペア:

[(1, 81997230), (2, 40998615), (3, 27332410), (5, 16399446), (6, 13666205), (7, 11713890), (10, 8199723), (14, 5856945), (15, 5466482), (21, 3904630), (30, 2733241), (35, 2342778), (42, 1952315), (70, 1171389), (105, 780926), (210, 390463)]