2840389640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6455431}}^1$

素因数の和:6455453

約数の個数: 32

約数和(自身を含む): 6971866560

約数和(自身を除く): 4131476920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6455431, 12910862, 25821724, 32277155, 51643448, 64554310, 71009741, 129108620, 142019482, 258217240, 284038964, 355048705, 568077928, 710097410, 1420194820, 2840389640]

約数ペア:

[(1, 2840389640), (2, 1420194820), (4, 710097410), (5, 568077928), (8, 355048705), (10, 284038964), (11, 258217240), (20, 142019482), (22, 129108620), (40, 71009741), (44, 64554310), (55, 51643448), (88, 32277155), (110, 25821724), (220, 12910862), (440, 6455431)]