155989778

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{28643}}^1$

素因数の和:29041

約数の個数: 16

約数和(自身を含む): 268107840

約数和(自身を除く): 112118062

約数列:

[1, 2, 7, 14, 389, 778, 2723, 5446, 28643, 57286, 200501, 401002, 11142127, 22284254, 77994889, 155989778]

約数ペア:

[(1, 155989778), (2, 77994889), (7, 22284254), (14, 11142127), (389, 401002), (778, 200501), (2723, 57286), (5446, 28643)]