1640988

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 4207840

約数和(自身を除く): 2566852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 577, 711, 948, 1154, 1422, 1731, 2308, 2844, 3462, 5193, 6924, 10386, 20772, 45583, 91166, 136749, 182332, 273498, 410247, 546996, 820494, 1640988]

約数ペア:

[(1, 1640988), (2, 820494), (3, 546996), (4, 410247), (6, 273498), (9, 182332), (12, 136749), (18, 91166), (36, 45583), (79, 20772), (158, 10386), (237, 6924), (316, 5193), (474, 3462), (577, 2844), (711, 2308), (948, 1731), (1154, 1422)]