66838520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{238709}}^1$

素因数の和:238727

約数の個数: 32

約数和(自身を含む): 171871200

約数和(自身を除く): 105032680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 238709, 477418, 954836, 1193545, 1670963, 1909672, 2387090, 3341926, 4774180, 6683852, 8354815, 9548360, 13367704, 16709630, 33419260, 66838520]

約数ペア:

[(1, 66838520), (2, 33419260), (4, 16709630), (5, 13367704), (7, 9548360), (8, 8354815), (10, 6683852), (14, 4774180), (20, 3341926), (28, 2387090), (35, 1909672), (40, 1670963), (56, 1193545), (70, 954836), (140, 477418), (280, 238709)]