805640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1831}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 1978560

約数和(自身を除く): 1172920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1831, 3662, 7324, 9155, 14648, 18310, 20141, 36620, 40282, 73240, 80564, 100705, 161128, 201410, 402820, 805640]

約数ペア:

[(1, 805640), (2, 402820), (4, 201410), (5, 161128), (8, 100705), (10, 80564), (11, 73240), (20, 40282), (22, 36620), (40, 20141), (44, 18310), (55, 14648), (88, 9155), (110, 7324), (220, 3662), (440, 1831)]