81177780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1352963}}^1$

素因数の和:1352975

約数の個数: 24

約数和(自身を含む): 227297952

約数和(自身を除く): 146120172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1352963, 2705926, 4058889, 5411852, 6764815, 8117778, 13529630, 16235556, 20294445, 27059260, 40588890, 81177780]

約数ペア:

[(1, 81177780), (2, 40588890), (3, 27059260), (4, 20294445), (5, 16235556), (6, 13529630), (10, 8117778), (12, 6764815), (15, 5411852), (20, 4058889), (30, 2705926), (60, 1352963)]