2008820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 4814208

約数和(自身を除く): 2805388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 397, 460, 506, 794, 1012, 1265, 1588, 1985, 2530, 3970, 4367, 5060, 7940, 8734, 9131, 17468, 18262, 21835, 36524, 43670, 45655, 87340, 91310, 100441, 182620, 200882, 401764, 502205, 1004410, 2008820]

約数ペア:

[(1, 2008820), (2, 1004410), (4, 502205), (5, 401764), (10, 200882), (11, 182620), (20, 100441), (22, 91310), (23, 87340), (44, 45655), (46, 43670), (55, 36524), (92, 21835), (110, 18262), (115, 17468), (220, 9131), (230, 8734), (253, 7940), (397, 5060), (460, 4367), (506, 3970), (794, 2530), (1012, 1985), (1265, 1588)]