20804563208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1721}}^1\times {\mathrm{10567}}^1$

素因数の和:12318

約数の個数: 64

約数和(自身を含む): 45859201920

約数和(自身を除く): 25054638712

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 1721, 3442, 6884, 10567, 13768, 18931, 21134, 22373, 37862, 42268, 44746, 75724, 84536, 89492, 116237, 137371, 151448, 178984, 232474, 246103, 274742, 464948, 492206, 549484, 929896, 984412, 1098968, 1511081, 1968824, 3022162, 6044324, 12088648, 18185807, 36371614, 72743228, 145486456, 200043877, 236415491, 400087754, 472830982, 800175508, 945661964, 1600351016, 1891323928, 2600570401, 5201140802, 10402281604, 20804563208]

約数ペア:

[(1, 20804563208), (2, 10402281604), (4, 5201140802), (8, 2600570401), (11, 1891323928), (13, 1600351016), (22, 945661964), (26, 800175508), (44, 472830982), (52, 400087754), (88, 236415491), (104, 200043877), (143, 145486456), (286, 72743228), (572, 36371614), (1144, 18185807), (1721, 12088648), (3442, 6044324), (6884, 3022162), (10567, 1968824), (13768, 1511081), (18931, 1098968), (21134, 984412), (22373, 929896), (37862, 549484), (42268, 492206), (44746, 464948), (75724, 274742), (84536, 246103), (89492, 232474), (116237, 178984), (137371, 151448)]