19801524

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 47811456

約数和(自身を除く): 28009932

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 167, 241, 246, 334, 482, 492, 501, 668, 723, 964, 1002, 1446, 2004, 2892, 6847, 9881, 13694, 19762, 20541, 27388, 29643, 39524, 40247, 41082, 59286, 80494, 82164, 118572, 120741, 160988, 241482, 482964, 1650127, 3300254, 4950381, 6600508, 9900762, 19801524]

約数ペア:

[(1, 19801524), (2, 9900762), (3, 6600508), (4, 4950381), (6, 3300254), (12, 1650127), (41, 482964), (82, 241482), (123, 160988), (164, 120741), (167, 118572), (241, 82164), (246, 80494), (334, 59286), (482, 41082), (492, 40247), (501, 39524), (668, 29643), (723, 27388), (964, 20541), (1002, 19762), (1446, 13694), (2004, 9881), (2892, 6847)]