1999809815

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{2711}}^1$

素因数の和:2879

約数の個数: 32

約数和(自身を含む): 2543118336

約数和(自身を除く): 543308521

約数列:

[1, 5, 43, 47, 73, 215, 235, 365, 2021, 2711, 3139, 3431, 10105, 13555, 15695, 17155, 116573, 127417, 147533, 197903, 582865, 637085, 737665, 989515, 5478931, 8509829, 9301441, 27394655, 42549145, 46507205, 399961963, 1999809815]

約数ペア:

[(1, 1999809815), (5, 399961963), (43, 46507205), (47, 42549145), (73, 27394655), (215, 9301441), (235, 8509829), (365, 5478931), (2021, 989515), (2711, 737665), (3139, 637085), (3431, 582865), (10105, 197903), (13555, 147533), (15695, 127417), (17155, 116573)]